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HomeMy WebLinkAboutC15-0009-Hydrology-Report_2019-16-09 (Adams Streeter)15 Corporate Park | Irvine, CA 92606 | 949-474-2330 Preliminary Hydrology Report Project Name: Bayside Family Resort Newport Beach CA Prepared for: Newport Bayside Resort, LLC 10250 Constellation Blvd. Suite 1750 Los Angeles, CA 90067 09.16.2019 Prepared by: Felix Gonzalez fgonzalez@adams-streeter.com 2 TABLE OF CONTENTS INTRODUCTION .................................................................................................................................... 3 METHODOLOGY ................................................................................................................................... 3 STORM DRAIN SYSTEM—EXISTING AND PROPOSED CONDITION ................................................ 3 CONCLUSION / RECOMMENDATIONS ............................................................................................4-5 APPENDIX Appendix A ......... ........................................................................................................... Hydrology Map Appendix B ........ .................................................................... Existing Rational Method Q2 Hydrology Appendix C ........ ................................................................... Existing Rational Method Q10 Hydrology Appendix D ........ ................................................................... Existing Rational Method Q25 Hydrology Appendix E ......... .................................................................. Existing Rational Method Q100 Hydrology Appendix F ......... ................................................................. Proposed Rational Method Q2 Hydrology Appendix G ........ ................................................................ Proposed Rational Method Q10 Hydrology Appendix H ........ ................................................................ Proposed Rational Method Q25 Hydrology Appendix I .......... ...............................................................Proposed Rational Method Q100 Hydrology 3 INTRODUCTION The project is located at the Newport Dunes on APN 988-13-243 at the end of Bayside Drive off of the Pacific Coast Highway. The Zoning Map for the City of Newport Beach shows that the site is located in the Zoning District known as Planned Community, PC-48. The site is approximately 14.3 acres. Under existing conditions, the site consists of a boat storage area and a dredging stockpile. An existing driveway, boat storage, and parking lot are located along the north and west boundaries of the property. The west and south side of the project site are bounded by an existing RV parking area. A stretch of the beach at Newport Dunes lagoon forms the easterly side of the site. The proposed improvements will include a 275-room Family Inn resort with outdoor recreational areas along the east boundary by the Newport Dunes lagoon. The rest of the project site will be a parking lot to accommodate the guests. Development of the proposed resort will require grading of the existing boat storage parking and dredging stockpile area. Site improvements will include construction of new utility lines to serve the proposed building and parking lot and construction of other site improvements such as pavement, curb and gutter, water quality landscaping measures, hardscape and landscape. METHODOLOGY The existing and proposed condition rational method peak flows were analyzed using the Advance Engineering Software (AES) package for Orange County, which complies with the County of Orange Hydrology Manual. The software computes peak flows based on the Rational Method, and follows the requirements of the County of Orange Hydrology Manual. Existing drainage patterns, and existing reference plans are utilized to determine drainage patterns for this study. For the purpose of modeling, the site and all tributary areas of the site, are divided into smaller subareas to more accurately model drainage patterns. Once all areas are divided into smaller subareas, initial subareas with flow patterns are determined for software use. All areas and flow patterns are considered and used in the AES software for modeling, to provide peak flowrates. Additionally, the software parameters for the rational method hydrology analysis for the existing and proposed condition are listed below:  Storm Events – 2, 10, 25, and 100 year  Soil Type D (Existing and Proposed)  AMC II (Existing and Proposed Condition)  Land Use – Public Park (Existing Condition)  Land Use – Commercial (Proposed Condition) STORM DRAIN SYSTEM—EXISTING AND PROPOSED CONDITION The existing site drainage is generally south to north with existing storm drain pipes and catch basins collecting the runoff and directing the flows east to Newport Bay. The existing parking lot, vacant area and boat storage parking are generally flat with mild slopes of 0.5% to 1.0% and carry the surface runoff to low points whereby catch basins intercept and convey the flows to storm drain pipes. These flows are then conveyed via below grade storm drain pipes to Newport Bay. The dredging stockpile area varies in height from approximately 5’ below adjacent ground to approximately 15’ above adjacent ground with irregular 4 piles within the area. Drainage from the stockpile area is mostly contained within the fenced area with the exception of outward facing slopes that drain to adjacent parking lots or the beach area. The proposed drainage is to mimic the existing patterns, which are generally south to north. The surface runoff will sheet flow to proposed catch basins and into storm drain pipes. Roof drains will be connected to the storm drain pipe along the new alignment which will eventually connect into the existing discharge points into the bay. The stormwater runoff will outlet to the Newport Bay (Upper Ecological Reserve) and then ultimately into the Pacific Ocean. CONCLUSION / RECOMMENDATIONS The results of the hydrology analysis show an increase in peak flows from the existing condition of the site to the proposed improvements. Table 1.1 and Table 1.2 tabulates the existing and proposed flow rates, respectively, for each subarea for each storm event study. Table 1.1 Existing Flowrates Area ID Area (Acres) Flow (CFS) 2-Year 10-Year 25-Year 100-Year 1A 2.93 4.39 7.92 9.46 12.10 2A 2.41 3.61 6.51 7.78 9.95 3A 1.22 1.75 3.15 3.77 4.82 4A 1.38 1.97 3.69 4.44 5.74 5A 1.30 2.26 4.21 5.04 6.52 6A 1.40 2.10 3.94 4.74 6.12 7A 3.65 4.73 8.93 10.76 13.90 TOTAL 14.29 20.81 38.35 45.99 59.15 Table 1.2 Proposed Flowrates Area ID Area (Acres) Flow (CFS) 2-Year 10-Year 25-Year 100-Year 1A 1.18 1.79 3.23 3.85 4.93 1B 0.16 0.24 0.43 0.51 0.66 1C 0.21 0.30 0.55 0.66 0.84 1D 0.10 0.14 0.25 0.30 0.39 1E 0.14 0.19 0.35 0.42 0.54 1F 0.09 0.12 0.22 0.26 0.34 1G 0.35 0.45 0.83 1.00 1.29 1H 0.34 0.43 0.79 0.95 1.23 1I 0.69 0.85 1.57 1.89 2.43 1J 1.43 2.41 4.35 5.19 6.65 1K 0.80 1.33 2.39 2.86 3.66 5 1L 1.01 1.61 2.93 3.50 4.50 1M 1.23 1.88 3.44 4.12 5.29 1N 0.22 0.24 0.45 0.55 0.7 SUBTOTAL 1 7.95 11.98 21.78 26.06 33.45 2A 0.16 0.31 0.56 0.67 0.86 2B 0.27 0.46 0.87 1.04 1.35 SUBTOTAL 2 0.43 0.77 1.43 1.71 2.21 3A 0.12 0.24 0.44 0.52 0.67 3B 0.57 1.10 0.57 2.37 3.06 3C 0.74 1.29 2.36 2.82 3.65 3D 0.35 0.61 1.12 1.33 1.73 3E 0.28 0.49 0.89 1.07 1.38 3F 0.23 0.38 0.70 0.84 1.09 3G 0.56 0.93 1.72 2.06 2.66 3H 0.49 0.82 1.50 1.80 2.33 3I 0.67 1.04 1.94 2.32 3.02 3J 1.08 1.62 3.03 3.65 4.74 3K 0.11 0.17 0.31 0.37 0.48 3L 0.20 0.30 0.56 0.67 0.88 3M 0.11 0.17 0.31 0.37 0.48 3N 0.40 0.46 0.87 1.05 1.36 SUBTOTAL 3 5.91 9.62 16.32 21.24 27.53 TOTAL 14.29 22.37 39.53 49.01 63.19 Hydrology Map X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X XXXX X X X X X X X X X X X X X X X X XXXXXXXXXXXXXX XXX XXX XXX XXXXXXXXXXXXXX XXX X X X X X X X X X X X X X X X X X 15 Corporate Park, Irvine, CA 92606 | 949.474.2330 | adams-streeter.com LEGEND UP R D R D RD RD RD R D R D RD RD RD RD RD R D RD RD X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X XXXX X X X X X X X X X X X X X X X X XXXXXXXXXXXXXX XXX XXX XXX XXXXXXXXXXXXXXXXX X X X X X X X X X X X X X X X X X 13.644 11.979 14.029 16755 Von Karman Ave, Suite 150, Irvine, CA 92606 949.474.2330 | adams-streeter.com LEGEND Existing Rational Method Q2 Hydrology EX-Q2.RES ____________________________________________________________________________ **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 ORANGE COUNTY HYDROLOGY CRITERION) (c) Copyright 1983-2008 Advanced Engineering Software (aes) Ver. 15.0 Release Date: 04/01/2008 License ID 1204 Analysis prepared by: Adams-Streeter Civil Engineers, Inc. 15 Corporate Park Irvine, CA 92606 949-474-2330 ---------------------------------------------------------------------------- FILE NAME: DUNES-E2.DAT TIME/DATE OF STUDY: 12:58 07/05/2018 ============================================================================ USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ============================================================================ --*TIME-OF-CONCENTRATION MODEL*-- USER SPECIFIED STORM EVENT(YEAR) = 2.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 6.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 0.95 *DATA BANK RAINFALL USED* *ANTECEDENT MOISTURE CONDITION (AMC) II ASSUMED FOR RATIONAL METHOD* *USER-DEFINED STREET-SECTIONS FOR COUPLED PIPEFLOW AND STREETFLOW MODEL* HALF- CROWN TO STREET-CROSSFALL: CURB GUTTER-GEOMETRIES: MANNING WIDTH CROSSFALL IN- / OUT-/PARK- HEIGHT WIDTH LIP HIKE FACTOR NO. (FT) (FT) SIDE / SIDE/ WAY (FT) (FT) (FT) (FT) (n) === ===== ========= ================= ====== ===== ====== ===== ======= 1 30.0 20.0 0.018/0.018/0.020 0.67 2.00 0.0313 0.167 0.0150 GLOBAL STREET FLOW-DEPTH CONSTRAINTS: 1. Relative Flow-Depth = 0.00 FEET as (Maximum Allowable Street Flow Depth) - (Top-of-Curb) 2. (Depth)*(Velocity) Constraint = 6.0 (FT*FT/S) *SIZE PIPE WITH A FLOW CAPACITY GREATER THAN OR EQUAL TO THE UPSTREAM TRIBUTARY PIPE.* *USER-SPECIFIED MINIMUM TOPOGRAPHIC SLOPE ADJUSTMENT NOT SELECTED **************************************************************************** FLOW PROCESS FROM NODE 1.01 TO NODE 1.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 368.90 ELEVATION DATA: UPSTREAM(FEET) = 15.00 DOWNSTREAM(FEET) = 11.80 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 8.356 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.686 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 2.93 0.20 0.100 75 8.36 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 4.39 TOTAL AREA(ACRES) = 2.93 PEAK FLOW RATE(CFS) = 4.39 Page 1 EX-Q2.RES **************************************************************************** FLOW PROCESS FROM NODE 2.01 TO NODE 2.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 305.00 ELEVATION DATA: UPSTREAM(FEET) = 14.80 DOWNSTREAM(FEET) = 13.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 8.364 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.685 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 2.41 0.20 0.100 75 8.36 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 3.61 TOTAL AREA(ACRES) = 2.41 PEAK FLOW RATE(CFS) = 3.61 **************************************************************************** FLOW PROCESS FROM NODE 3.01 TO NODE 3.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 358.90 ELEVATION DATA: UPSTREAM(FEET) = 15.00 DOWNSTREAM(FEET) = 13.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 9.029 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.612 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 1.22 0.20 0.100 75 9.03 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 1.75 TOTAL AREA(ACRES) = 1.22 PEAK FLOW RATE(CFS) = 1.75 **************************************************************************** FLOW PROCESS FROM NODE 4.01 TO NODE 4.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 289.80 ELEVATION DATA: UPSTREAM(FEET) = 29.00 DOWNSTREAM(FEET) = 7.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 7.811 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.752 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) PUBLIC PARK D 1.38 0.20 0.850 75 7.81 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.850 SUBAREA RUNOFF(CFS) = 1.97 TOTAL AREA(ACRES) = 1.38 PEAK FLOW RATE(CFS) = 1.97 Page 2 EX-Q2.RES **************************************************************************** FLOW PROCESS FROM NODE 5.01 TO NODE 5.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 105.20 ELEVATION DATA: UPSTREAM(FEET) = 13.00 DOWNSTREAM(FEET) = 7.90 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 5.697 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 2.100 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) PUBLIC PARK D 1.30 0.20 0.850 75 5.70 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.850 SUBAREA RUNOFF(CFS) = 2.26 TOTAL AREA(ACRES) = 1.30 PEAK FLOW RATE(CFS) = 2.26 **************************************************************************** FLOW PROCESS FROM NODE 6.01 TO NODE 6.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 164.40 ELEVATION DATA: UPSTREAM(FEET) = 15.90 DOWNSTREAM(FEET) = 9.80 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 7.185 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.838 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) PUBLIC PARK D 1.40 0.20 0.850 75 7.18 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.850 SUBAREA RUNOFF(CFS) = 2.10 TOTAL AREA(ACRES) = 1.40 PEAK FLOW RATE(CFS) = 2.10 **************************************************************************** FLOW PROCESS FROM NODE 7.01 TO NODE 7.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 383.80 ELEVATION DATA: UPSTREAM(FEET) = 29.00 DOWNSTREAM(FEET) = 4.70 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 9.063 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.609 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) PUBLIC PARK D 3.65 0.20 0.850 75 9.06 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.850 SUBAREA RUNOFF(CFS) = 4.73 TOTAL AREA(ACRES) = 3.65 PEAK FLOW RATE(CFS) = 4.73 Page 3 EX-Q2.RES ============================================================================ END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 3.7 TC(MIN.) = 9.06 EFFECTIVE AREA(ACRES) = 3.65 AREA-AVERAGED Fm(INCH/HR)= 0.17 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.850 PEAK FLOW RATE(CFS) = 4.73 ============================================================================ ============================================================================ END OF RATIONAL METHOD ANALYSIS Page 4 Existing Rational Method Q10 Hydrology EX-Q10.RES ____________________________________________________________________________ **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 ORANGE COUNTY HYDROLOGY CRITERION) (c) Copyright 1983-2008 Advanced Engineering Software (aes) Ver. 15.0 Release Date: 04/01/2008 License ID 1204 Analysis prepared by: Adams-Streeter Civil Engineers, Inc. 15 Corporate Park Irvine, CA 92606 949-474-2330 ---------------------------------------------------------------------------- FILE NAME: DUNES-E2.DAT TIME/DATE OF STUDY: 12:59 07/05/2018 ============================================================================ USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ============================================================================ --*TIME-OF-CONCENTRATION MODEL*-- USER SPECIFIED STORM EVENT(YEAR) = 10.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 6.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 0.95 *DATA BANK RAINFALL USED* *ANTECEDENT MOISTURE CONDITION (AMC) II ASSUMED FOR RATIONAL METHOD* *USER-DEFINED STREET-SECTIONS FOR COUPLED PIPEFLOW AND STREETFLOW MODEL* HALF- CROWN TO STREET-CROSSFALL: CURB GUTTER-GEOMETRIES: MANNING WIDTH CROSSFALL IN- / OUT-/PARK- HEIGHT WIDTH LIP HIKE FACTOR NO. (FT) (FT) SIDE / SIDE/ WAY (FT) (FT) (FT) (FT) (n) === ===== ========= ================= ====== ===== ====== ===== ======= 1 30.0 20.0 0.018/0.018/0.020 0.67 2.00 0.0313 0.167 0.0150 GLOBAL STREET FLOW-DEPTH CONSTRAINTS: 1. Relative Flow-Depth = 0.00 FEET as (Maximum Allowable Street Flow Depth) - (Top-of-Curb) 2. (Depth)*(Velocity) Constraint = 6.0 (FT*FT/S) *SIZE PIPE WITH A FLOW CAPACITY GREATER THAN OR EQUAL TO THE UPSTREAM TRIBUTARY PIPE.* *USER-SPECIFIED MINIMUM TOPOGRAPHIC SLOPE ADJUSTMENT NOT SELECTED **************************************************************************** FLOW PROCESS FROM NODE 1.01 TO NODE 1.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 368.90 ELEVATION DATA: UPSTREAM(FEET) = 15.00 DOWNSTREAM(FEET) = 11.80 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 8.356 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 3.025 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 2.93 0.20 0.100 75 8.36 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 7.92 TOTAL AREA(ACRES) = 2.93 PEAK FLOW RATE(CFS) = 7.92 Page 1 EX-Q10.RES **************************************************************************** FLOW PROCESS FROM NODE 2.01 TO NODE 2.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 305.00 ELEVATION DATA: UPSTREAM(FEET) = 14.80 DOWNSTREAM(FEET) = 13.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 8.364 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 3.023 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 2.41 0.20 0.100 75 8.36 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 6.51 TOTAL AREA(ACRES) = 2.41 PEAK FLOW RATE(CFS) = 6.51 **************************************************************************** FLOW PROCESS FROM NODE 3.01 TO NODE 3.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 358.90 ELEVATION DATA: UPSTREAM(FEET) = 15.00 DOWNSTREAM(FEET) = 13.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 9.029 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 2.893 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 1.22 0.20 0.100 75 9.03 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 3.15 TOTAL AREA(ACRES) = 1.22 PEAK FLOW RATE(CFS) = 3.15 **************************************************************************** FLOW PROCESS FROM NODE 4.01 TO NODE 4.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 289.80 ELEVATION DATA: UPSTREAM(FEET) = 29.00 DOWNSTREAM(FEET) = 7.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 7.811 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 3.144 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) PUBLIC PARK D 1.38 0.20 0.850 75 7.81 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.850 SUBAREA RUNOFF(CFS) = 3.69 TOTAL AREA(ACRES) = 1.38 PEAK FLOW RATE(CFS) = 3.69 Page 2 EX-Q10.RES **************************************************************************** FLOW PROCESS FROM NODE 5.01 TO NODE 5.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 105.20 ELEVATION DATA: UPSTREAM(FEET) = 13.00 DOWNSTREAM(FEET) = 7.90 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 5.697 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 3.767 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) PUBLIC PARK D 1.30 0.20 0.850 75 5.70 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.850 SUBAREA RUNOFF(CFS) = 4.21 TOTAL AREA(ACRES) = 1.30 PEAK FLOW RATE(CFS) = 4.21 **************************************************************************** FLOW PROCESS FROM NODE 6.01 TO NODE 6.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 164.40 ELEVATION DATA: UPSTREAM(FEET) = 15.90 DOWNSTREAM(FEET) = 9.80 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 7.185 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 3.298 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) PUBLIC PARK D 1.40 0.20 0.850 75 7.18 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.850 SUBAREA RUNOFF(CFS) = 3.94 TOTAL AREA(ACRES) = 1.40 PEAK FLOW RATE(CFS) = 3.94 **************************************************************************** FLOW PROCESS FROM NODE 7.01 TO NODE 7.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 383.80 ELEVATION DATA: UPSTREAM(FEET) = 29.00 DOWNSTREAM(FEET) = 4.70 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 9.063 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 2.887 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) PUBLIC PARK D 3.65 0.20 0.850 75 9.06 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.850 SUBAREA RUNOFF(CFS) = 8.93 TOTAL AREA(ACRES) = 3.65 PEAK FLOW RATE(CFS) = 8.93 Page 3 EX-Q10.RES ============================================================================ END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 3.7 TC(MIN.) = 9.06 EFFECTIVE AREA(ACRES) = 3.65 AREA-AVERAGED Fm(INCH/HR)= 0.17 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.850 PEAK FLOW RATE(CFS) = 8.93 ============================================================================ ============================================================================ END OF RATIONAL METHOD ANALYSIS Page 4 Existing Rational Method Q25 Hydrology EX-Q25.RES ____________________________________________________________________________ **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 ORANGE COUNTY HYDROLOGY CRITERION) (c) Copyright 1983-2008 Advanced Engineering Software (aes) Ver. 15.0 Release Date: 04/01/2008 License ID 1204 Analysis prepared by: Adams-Streeter Civil Engineers, Inc. 15 Corporate Park Irvine, CA 92606 949-474-2330 ---------------------------------------------------------------------------- FILE NAME: DUNES-E2.DAT TIME/DATE OF STUDY: 13:00 07/05/2018 ============================================================================ USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ============================================================================ --*TIME-OF-CONCENTRATION MODEL*-- USER SPECIFIED STORM EVENT(YEAR) = 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 6.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 0.95 *DATA BANK RAINFALL USED* *ANTECEDENT MOISTURE CONDITION (AMC) II ASSUMED FOR RATIONAL METHOD* *USER-DEFINED STREET-SECTIONS FOR COUPLED PIPEFLOW AND STREETFLOW MODEL* HALF- CROWN TO STREET-CROSSFALL: CURB GUTTER-GEOMETRIES: MANNING WIDTH CROSSFALL IN- / OUT-/PARK- HEIGHT WIDTH LIP HIKE FACTOR NO. (FT) (FT) SIDE / SIDE/ WAY (FT) (FT) (FT) (FT) (n) === ===== ========= ================= ====== ===== ====== ===== ======= 1 30.0 20.0 0.018/0.018/0.020 0.67 2.00 0.0313 0.167 0.0150 GLOBAL STREET FLOW-DEPTH CONSTRAINTS: 1. Relative Flow-Depth = 0.00 FEET as (Maximum Allowable Street Flow Depth) - (Top-of-Curb) 2. (Depth)*(Velocity) Constraint = 6.0 (FT*FT/S) *SIZE PIPE WITH A FLOW CAPACITY GREATER THAN OR EQUAL TO THE UPSTREAM TRIBUTARY PIPE.* *USER-SPECIFIED MINIMUM TOPOGRAPHIC SLOPE ADJUSTMENT NOT SELECTED **************************************************************************** FLOW PROCESS FROM NODE 1.01 TO NODE 1.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 368.90 ELEVATION DATA: UPSTREAM(FEET) = 15.00 DOWNSTREAM(FEET) = 11.80 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 8.356 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.607 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 2.93 0.20 0.100 75 8.36 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 9.46 TOTAL AREA(ACRES) = 2.93 PEAK FLOW RATE(CFS) = 9.46 Page 1 EX-Q25.RES **************************************************************************** FLOW PROCESS FROM NODE 2.01 TO NODE 2.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 305.00 ELEVATION DATA: UPSTREAM(FEET) = 14.80 DOWNSTREAM(FEET) = 13.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 8.364 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.605 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 2.41 0.20 0.100 75 8.36 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 7.78 TOTAL AREA(ACRES) = 2.41 PEAK FLOW RATE(CFS) = 7.78 **************************************************************************** FLOW PROCESS FROM NODE 3.01 TO NODE 3.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 358.90 ELEVATION DATA: UPSTREAM(FEET) = 15.00 DOWNSTREAM(FEET) = 13.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 9.029 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.452 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 1.22 0.20 0.100 75 9.03 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 3.77 TOTAL AREA(ACRES) = 1.22 PEAK FLOW RATE(CFS) = 3.77 **************************************************************************** FLOW PROCESS FROM NODE 4.01 TO NODE 4.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 289.80 ELEVATION DATA: UPSTREAM(FEET) = 29.00 DOWNSTREAM(FEET) = 7.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 7.811 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.747 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) PUBLIC PARK D 1.38 0.20 0.850 75 7.81 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.850 SUBAREA RUNOFF(CFS) = 4.44 TOTAL AREA(ACRES) = 1.38 PEAK FLOW RATE(CFS) = 4.44 Page 2 EX-Q25.RES **************************************************************************** FLOW PROCESS FROM NODE 5.01 TO NODE 5.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 105.20 ELEVATION DATA: UPSTREAM(FEET) = 13.00 DOWNSTREAM(FEET) = 7.90 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 5.697 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 4.480 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) PUBLIC PARK D 1.30 0.20 0.850 75 5.70 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.850 SUBAREA RUNOFF(CFS) = 5.04 TOTAL AREA(ACRES) = 1.30 PEAK FLOW RATE(CFS) = 5.04 **************************************************************************** FLOW PROCESS FROM NODE 6.01 TO NODE 6.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 164.40 ELEVATION DATA: UPSTREAM(FEET) = 15.90 DOWNSTREAM(FEET) = 9.80 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 7.185 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.929 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) PUBLIC PARK D 1.40 0.20 0.850 75 7.18 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.850 SUBAREA RUNOFF(CFS) = 4.74 TOTAL AREA(ACRES) = 1.40 PEAK FLOW RATE(CFS) = 4.74 **************************************************************************** FLOW PROCESS FROM NODE 7.01 TO NODE 7.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 383.80 ELEVATION DATA: UPSTREAM(FEET) = 29.00 DOWNSTREAM(FEET) = 4.70 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 9.063 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.445 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) PUBLIC PARK D 3.65 0.20 0.850 75 9.06 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.850 SUBAREA RUNOFF(CFS) = 10.76 TOTAL AREA(ACRES) = 3.65 PEAK FLOW RATE(CFS) = 10.76 Page 3 EX-Q25.RES ============================================================================ END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 3.7 TC(MIN.) = 9.06 EFFECTIVE AREA(ACRES) = 3.65 AREA-AVERAGED Fm(INCH/HR)= 0.17 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.850 PEAK FLOW RATE(CFS) = 10.76 ============================================================================ ============================================================================ END OF RATIONAL METHOD ANALYSIS Page 4 Existing Rational Method Q100 Hydrology EX-Q100.RES ____________________________________________________________________________ **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 ORANGE COUNTY HYDROLOGY CRITERION) (c) Copyright 1983-2008 Advanced Engineering Software (aes) Ver. 15.0 Release Date: 04/01/2008 License ID 1204 Analysis prepared by: Adams-Streeter Civil Engineers, Inc. 15 Corporate Park Irvine, CA 92606 949-474-2330 ---------------------------------------------------------------------------- FILE NAME: DUNES-E2.DAT TIME/DATE OF STUDY: 12:59 07/05/2018 ============================================================================ USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ============================================================================ --*TIME-OF-CONCENTRATION MODEL*-- USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 6.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 0.95 *DATA BANK RAINFALL USED* *ANTECEDENT MOISTURE CONDITION (AMC) II ASSUMED FOR RATIONAL METHOD* *USER-DEFINED STREET-SECTIONS FOR COUPLED PIPEFLOW AND STREETFLOW MODEL* HALF- CROWN TO STREET-CROSSFALL: CURB GUTTER-GEOMETRIES: MANNING WIDTH CROSSFALL IN- / OUT-/PARK- HEIGHT WIDTH LIP HIKE FACTOR NO. (FT) (FT) SIDE / SIDE/ WAY (FT) (FT) (FT) (FT) (n) === ===== ========= ================= ====== ===== ====== ===== ======= 1 30.0 20.0 0.018/0.018/0.020 0.67 2.00 0.0313 0.167 0.0150 GLOBAL STREET FLOW-DEPTH CONSTRAINTS: 1. Relative Flow-Depth = 0.00 FEET as (Maximum Allowable Street Flow Depth) - (Top-of-Curb) 2. (Depth)*(Velocity) Constraint = 6.0 (FT*FT/S) *SIZE PIPE WITH A FLOW CAPACITY GREATER THAN OR EQUAL TO THE UPSTREAM TRIBUTARY PIPE.* *USER-SPECIFIED MINIMUM TOPOGRAPHIC SLOPE ADJUSTMENT NOT SELECTED **************************************************************************** FLOW PROCESS FROM NODE 1.01 TO NODE 1.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 368.90 ELEVATION DATA: UPSTREAM(FEET) = 15.00 DOWNSTREAM(FEET) = 11.80 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 8.356 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 4.610 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 2.93 0.20 0.100 75 8.36 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 12.10 TOTAL AREA(ACRES) = 2.93 PEAK FLOW RATE(CFS) = 12.10 Page 1 EX-Q100.RES **************************************************************************** FLOW PROCESS FROM NODE 2.01 TO NODE 2.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 305.00 ELEVATION DATA: UPSTREAM(FEET) = 14.80 DOWNSTREAM(FEET) = 13.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 8.364 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 4.608 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 2.41 0.20 0.100 75 8.36 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 9.95 TOTAL AREA(ACRES) = 2.41 PEAK FLOW RATE(CFS) = 9.95 **************************************************************************** FLOW PROCESS FROM NODE 3.01 TO NODE 3.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 358.90 ELEVATION DATA: UPSTREAM(FEET) = 15.00 DOWNSTREAM(FEET) = 13.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 9.029 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 4.410 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 1.22 0.20 0.100 75 9.03 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 4.82 TOTAL AREA(ACRES) = 1.22 PEAK FLOW RATE(CFS) = 4.82 **************************************************************************** FLOW PROCESS FROM NODE 4.01 TO NODE 4.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 289.80 ELEVATION DATA: UPSTREAM(FEET) = 29.00 DOWNSTREAM(FEET) = 7.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 7.811 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 4.792 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) PUBLIC PARK D 1.38 0.20 0.850 75 7.81 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.850 SUBAREA RUNOFF(CFS) = 5.74 TOTAL AREA(ACRES) = 1.38 PEAK FLOW RATE(CFS) = 5.74 Page 2 EX-Q100.RES **************************************************************************** FLOW PROCESS FROM NODE 5.01 TO NODE 5.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 105.20 ELEVATION DATA: UPSTREAM(FEET) = 13.00 DOWNSTREAM(FEET) = 7.90 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 5.697 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 5.742 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) PUBLIC PARK D 1.30 0.20 0.850 75 5.70 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.850 SUBAREA RUNOFF(CFS) = 6.52 TOTAL AREA(ACRES) = 1.30 PEAK FLOW RATE(CFS) = 6.52 **************************************************************************** FLOW PROCESS FROM NODE 6.01 TO NODE 6.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 164.40 ELEVATION DATA: UPSTREAM(FEET) = 15.90 DOWNSTREAM(FEET) = 9.80 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 7.185 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 5.027 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) PUBLIC PARK D 1.40 0.20 0.850 75 7.18 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.850 SUBAREA RUNOFF(CFS) = 6.12 TOTAL AREA(ACRES) = 1.40 PEAK FLOW RATE(CFS) = 6.12 **************************************************************************** FLOW PROCESS FROM NODE 7.01 TO NODE 7.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 383.80 ELEVATION DATA: UPSTREAM(FEET) = 29.00 DOWNSTREAM(FEET) = 4.70 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 9.063 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 4.400 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) PUBLIC PARK D 3.65 0.20 0.850 75 9.06 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.850 SUBAREA RUNOFF(CFS) = 13.90 TOTAL AREA(ACRES) = 3.65 PEAK FLOW RATE(CFS) = 13.90 Page 3 EX-Q100.RES ============================================================================ END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 3.7 TC(MIN.) = 9.06 EFFECTIVE AREA(ACRES) = 3.65 AREA-AVERAGED Fm(INCH/HR)= 0.17 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.850 PEAK FLOW RATE(CFS) = 13.90 ============================================================================ ============================================================================ END OF RATIONAL METHOD ANALYSIS Page 4 Proposed Rational Method Q2 Hydrology P1-Q2.RES ____________________________________________________________________________ **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 ORANGE COUNTY HYDROLOGY CRITERION) (c) Copyright 1983-2008 Advanced Engineering Software (aes) Ver. 15.0 Release Date: 04/01/2008 License ID 1204 Analysis prepared by: Adams-Streeter Civil Engineers, Inc. 15 Corporate Park Irvine, CA 92606 949-474-2330 ---------------------------------------------------------------------------- FILE NAME: DUNES-1.DAT TIME/DATE OF STUDY: 12:49 07/05/2018 ============================================================================ USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ============================================================================ --*TIME-OF-CONCENTRATION MODEL*-- USER SPECIFIED STORM EVENT(YEAR) = 2.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 6.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 0.95 *DATA BANK RAINFALL USED* *ANTECEDENT MOISTURE CONDITION (AMC) II ASSUMED FOR RATIONAL METHOD* *USER-DEFINED STREET-SECTIONS FOR COUPLED PIPEFLOW AND STREETFLOW MODEL* HALF- CROWN TO STREET-CROSSFALL: CURB GUTTER-GEOMETRIES: MANNING WIDTH CROSSFALL IN- / OUT-/PARK- HEIGHT WIDTH LIP HIKE FACTOR NO. (FT) (FT) SIDE / SIDE/ WAY (FT) (FT) (FT) (FT) (n) === ===== ========= ================= ====== ===== ====== ===== ======= 1 30.0 20.0 0.018/0.018/0.020 0.67 2.00 0.0313 0.167 0.0150 GLOBAL STREET FLOW-DEPTH CONSTRAINTS: 1. Relative Flow-Depth = 0.00 FEET as (Maximum Allowable Street Flow Depth) - (Top-of-Curb) 2. (Depth)*(Velocity) Constraint = 6.0 (FT*FT/S) *SIZE PIPE WITH A FLOW CAPACITY GREATER THAN OR EQUAL TO THE UPSTREAM TRIBUTARY PIPE.* *USER-SPECIFIED MINIMUM TOPOGRAPHIC SLOPE ADJUSTMENT NOT SELECTED **************************************************************************** FLOW PROCESS FROM NODE 1.01 TO NODE 1.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 433.00 ELEVATION DATA: UPSTREAM(FEET) = 19.00 DOWNSTREAM(FEET) = 13.30 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 8.196 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.705 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 1.18 0.20 0.100 75 8.20 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 1.79 TOTAL AREA(ACRES) = 1.18 PEAK FLOW RATE(CFS) = 1.79 Page 1 P1-Q2.RES **************************************************************************** FLOW PROCESS FROM NODE 1.02 TO NODE 1.03 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 97.40 MANNING'S N = 0.011 DEPTH OF FLOW IN 12.0 INCH PIPE IS 6.2 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 4.41 ESTIMATED PIPE DIAMETER(INCH) = 12.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 1.79 PIPE TRAVEL TIME(MIN.) = 0.37 Tc(MIN.) = 8.56 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.03 = 530.40 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.03 TO NODE 1.03 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 8.56 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.662 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.16 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.16 SUBAREA RUNOFF(CFS) = 0.24 EFFECTIVE AREA(ACRES) = 1.34 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.3 PEAK FLOW RATE(CFS) = 1.98 **************************************************************************** FLOW PROCESS FROM NODE 1.03 TO NODE 1.04 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 93.40 MANNING'S N = 0.011 DEPTH OF FLOW IN 12.0 INCH PIPE IS 6.5 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 4.53 ESTIMATED PIPE DIAMETER(INCH) = 12.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 1.98 PIPE TRAVEL TIME(MIN.) = 0.34 Tc(MIN.) = 8.91 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.04 = 623.80 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.04 TO NODE 1.04 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 8.91 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.625 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.21 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.21 SUBAREA RUNOFF(CFS) = 0.30 Page 2 P1-Q2.RES EFFECTIVE AREA(ACRES) = 1.55 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.5 PEAK FLOW RATE(CFS) = 2.24 **************************************************************************** FLOW PROCESS FROM NODE 1.04 TO NODE 1.05 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 143.20 MANNING'S N = 0.011 DEPTH OF FLOW IN 12.0 INCH PIPE IS 7.1 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 4.66 ESTIMATED PIPE DIAMETER(INCH) = 12.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 2.24 PIPE TRAVEL TIME(MIN.) = 0.51 Tc(MIN.) = 9.42 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.05 = 767.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.05 TO NODE 1.06 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 73.60 MANNING'S N = 0.011 DEPTH OF FLOW IN 12.0 INCH PIPE IS 7.1 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 4.66 ESTIMATED PIPE DIAMETER(INCH) = 12.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 2.24 PIPE TRAVEL TIME(MIN.) = 0.26 Tc(MIN.) = 9.68 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.06 = 840.60 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.06 TO NODE 1.06 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 9.68 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.549 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.10 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.10 SUBAREA RUNOFF(CFS) = 0.14 EFFECTIVE AREA(ACRES) = 1.65 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.6 PEAK FLOW RATE(CFS) = 2.27 **************************************************************************** FLOW PROCESS FROM NODE 1.06 TO NODE 1.07 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 72.10 MANNING'S N = 0.011 DEPTH OF FLOW IN 12.0 INCH PIPE IS 7.1 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 4.67 ESTIMATED PIPE DIAMETER(INCH) = 12.00 NUMBER OF PIPES = 1 Page 3 P1-Q2.RES PIPE-FLOW(CFS) = 2.27 PIPE TRAVEL TIME(MIN.) = 0.26 Tc(MIN.) = 9.94 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.07 = 912.70 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.07 TO NODE 1.07 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 9.94 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.526 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.14 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.14 SUBAREA RUNOFF(CFS) = 0.19 EFFECTIVE AREA(ACRES) = 1.79 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.8 PEAK FLOW RATE(CFS) = 2.43 **************************************************************************** FLOW PROCESS FROM NODE 1.07 TO NODE 1.08 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 112.50 MANNING'S N = 0.011 DEPTH OF FLOW IN 12.0 INCH PIPE IS 7.4 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 4.74 ESTIMATED PIPE DIAMETER(INCH) = 12.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 2.43 PIPE TRAVEL TIME(MIN.) = 0.40 Tc(MIN.) = 10.34 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.08 = 1025.20 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.08 TO NODE 1.08 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 10.34 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.492 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.09 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.09 SUBAREA RUNOFF(CFS) = 0.12 EFFECTIVE AREA(ACRES) = 1.88 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.9 PEAK FLOW RATE(CFS) = 2.49 **************************************************************************** FLOW PROCESS FROM NODE 1.08 TO NODE 1.09 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 115.30 MANNING'S N = 0.011 Page 4 P1-Q2.RES DEPTH OF FLOW IN 12.0 INCH PIPE IS 7.6 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 4.77 ESTIMATED PIPE DIAMETER(INCH) = 12.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 2.49 PIPE TRAVEL TIME(MIN.) = 0.40 Tc(MIN.) = 10.74 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.09 = 1140.50 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.09 TO NODE 1.09 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 10.74 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.460 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.35 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.35 SUBAREA RUNOFF(CFS) = 0.45 EFFECTIVE AREA(ACRES) = 2.23 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 2.2 PEAK FLOW RATE(CFS) = 2.89 **************************************************************************** FLOW PROCESS FROM NODE 1.09 TO NODE 1.10 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 156.50 MANNING'S N = 0.011 DEPTH OF FLOW IN 12.0 INCH PIPE IS 8.4 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 4.89 ESTIMATED PIPE DIAMETER(INCH) = 12.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 2.89 PIPE TRAVEL TIME(MIN.) = 0.53 Tc(MIN.) = 11.27 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.10 = 1297.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.10 TO NODE 1.10 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 11.27 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.420 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.34 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.34 SUBAREA RUNOFF(CFS) = 0.43 EFFECTIVE AREA(ACRES) = 2.57 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 2.6 PEAK FLOW RATE(CFS) = 3.24 **************************************************************************** FLOW PROCESS FROM NODE 1.10 TO NODE 1.11 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< Page 5 P1-Q2.RES ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 165.40 MANNING'S N = 0.011 DEPTH OF FLOW IN 12.0 INCH PIPE IS 9.3 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 4.97 ESTIMATED PIPE DIAMETER(INCH) = 12.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 3.24 PIPE TRAVEL TIME(MIN.) = 0.56 Tc(MIN.) = 11.83 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.11 = 1462.40 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.11 TO NODE 1.11 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 11.83 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.381 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.80 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.80 SUBAREA RUNOFF(CFS) = 0.98 EFFECTIVE AREA(ACRES) = 3.37 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 3.4 PEAK FLOW RATE(CFS) = 4.13 **************************************************************************** FLOW PROCESS FROM NODE 1.11 TO NODE 1.12 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 100.30 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 8.9 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.42 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 4.13 PIPE TRAVEL TIME(MIN.) = 0.31 Tc(MIN.) = 12.14 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.12 = 1562.70 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.12 TO NODE 1.12 IS CODE = 10 ---------------------------------------------------------------------------- >>>>>MAIN-STREAM MEMORY COPIED ONTO MEMORY BANK # 1 <<<<< ============================================================================ **************************************************************************** FLOW PROCESS FROM NODE 1.00 TO NODE 1.13 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 312.20 ELEVATION DATA: UPSTREAM(FEET) = 19.00 DOWNSTREAM(FEET) = 13.60 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 6.809 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.896 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc Page 6 P1-Q2.RES LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 1.43 0.20 0.100 75 6.81 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 2.41 TOTAL AREA(ACRES) = 1.43 PEAK FLOW RATE(CFS) = 2.41 **************************************************************************** FLOW PROCESS FROM NODE 1.13 TO NODE 1.14 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 65.30 MANNING'S N = 0.011 DEPTH OF FLOW IN 12.0 INCH PIPE IS 7.4 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 4.74 ESTIMATED PIPE DIAMETER(INCH) = 12.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 2.41 PIPE TRAVEL TIME(MIN.) = 0.23 Tc(MIN.) = 7.04 LONGEST FLOWPATH FROM NODE 1.00 TO NODE 1.14 = 377.50 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.14 TO NODE 1.14 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.04 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.860 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.80 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.80 SUBAREA RUNOFF(CFS) = 1.33 EFFECTIVE AREA(ACRES) = 2.23 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 2.2 PEAK FLOW RATE(CFS) = 3.69 **************************************************************************** FLOW PROCESS FROM NODE 1.14 TO NODE 1.15 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 143.60 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 8.3 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.28 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 3.69 PIPE TRAVEL TIME(MIN.) = 0.45 Tc(MIN.) = 7.49 LONGEST FLOWPATH FROM NODE 1.00 TO NODE 1.15 = 521.10 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.15 TO NODE 1.15 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.49 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.795 SUBAREA LOSS RATE DATA(AMC II): Page 7 P1-Q2.RES DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 1.01 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.01 SUBAREA RUNOFF(CFS) = 1.61 EFFECTIVE AREA(ACRES) = 3.24 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 3.2 PEAK FLOW RATE(CFS) = 5.18 **************************************************************************** FLOW PROCESS FROM NODE 1.15 TO NODE 1.16 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 195.70 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 10.4 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.67 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 5.18 PIPE TRAVEL TIME(MIN.) = 0.58 Tc(MIN.) = 8.07 LONGEST FLOWPATH FROM NODE 1.00 TO NODE 1.16 = 716.80 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.16 TO NODE 1.16 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 8.07 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.720 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 1.23 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.23 SUBAREA RUNOFF(CFS) = 1.88 EFFECTIVE AREA(ACRES) = 4.47 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 4.5 PEAK FLOW RATE(CFS) = 6.84 **************************************************************************** FLOW PROCESS FROM NODE 1.16 TO NODE 1.12 IS CODE = 11 ---------------------------------------------------------------------------- >>>>>CONFLUENCE MEMORY BANK # 1 WITH THE MAIN-STREAM MEMORY<<<<< ============================================================================ ** MAIN STREAM CONFLUENCE DATA ** STREAM Q Tc Intensity Fp(Fm) Ap Ae HEADWATER NUMBER (CFS) (MIN.) (INCH/HR) (INCH/HR) (ACRES) NODE 1 6.84 8.07 1.720 0.20( 0.02) 0.10 4.5 1.00 LONGEST FLOWPATH FROM NODE 1.00 TO NODE 1.12 = 716.80 FEET. ** MEMORY BANK # 1 CONFLUENCE DATA ** STREAM Q Tc Intensity Fp(Fm) Ap Ae HEADWATER NUMBER (CFS) (MIN.) (INCH/HR) (INCH/HR) (ACRES) NODE 1 4.13 12.14 1.361 0.20( 0.02) 0.10 3.4 1.01 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.12 = 1562.70 FEET. ** PEAK FLOW RATE TABLE ** STREAM Q Tc Intensity Fp(Fm) Ap Ae HEADWATER Page 8 P1-Q2.RES NUMBER (CFS) (MIN.) (INCH/HR) (INCH/HR) (ACRES) NODE 1 10.32 8.07 1.720 0.20( 0.02) 0.10 6.7 1.00 2 9.52 12.14 1.361 0.20( 0.02) 0.10 7.8 1.01 TOTAL AREA(ACRES) = 7.8 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 10.32 Tc(MIN.) = 8.066 EFFECTIVE AREA(ACRES) = 6.71 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 7.8 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.12 = 1562.70 FEET. ============================================================================ END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 7.8 TC(MIN.) = 8.07 EFFECTIVE AREA(ACRES) = 6.71 AREA-AVERAGED Fm(INCH/HR)= 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.100 PEAK FLOW RATE(CFS) = 10.32 ** PEAK FLOW RATE TABLE ** STREAM Q Tc Intensity Fp(Fm) Ap Ae HEADWATER NUMBER (CFS) (MIN.) (INCH/HR) (INCH/HR) (ACRES) NODE 1 10.32 8.07 1.720 0.20( 0.02) 0.10 6.7 1.00 2 9.52 12.14 1.361 0.20( 0.02) 0.10 7.8 1.01 ============================================================================ ============================================================================ END OF RATIONAL METHOD ANALYSIS Page 9 P2-Q2.RES ____________________________________________________________________________ **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 ORANGE COUNTY HYDROLOGY CRITERION) (c) Copyright 1983-2008 Advanced Engineering Software (aes) Ver. 15.0 Release Date: 04/01/2008 License ID 1204 Analysis prepared by: Adams-Streeter Civil Engineers, Inc. 15 Corporate Park Irvine, CA 92606 949-474-2330 ---------------------------------------------------------------------------- FILE NAME: DUNES-2.DAT TIME/DATE OF STUDY: 12:51 07/05/2018 ============================================================================ USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ============================================================================ --*TIME-OF-CONCENTRATION MODEL*-- USER SPECIFIED STORM EVENT(YEAR) = 2.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 6.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 0.95 *DATA BANK RAINFALL USED* *ANTECEDENT MOISTURE CONDITION (AMC) II ASSUMED FOR RATIONAL METHOD* *USER-DEFINED STREET-SECTIONS FOR COUPLED PIPEFLOW AND STREETFLOW MODEL* HALF- CROWN TO STREET-CROSSFALL: CURB GUTTER-GEOMETRIES: MANNING WIDTH CROSSFALL IN- / OUT-/PARK- HEIGHT WIDTH LIP HIKE FACTOR NO. (FT) (FT) SIDE / SIDE/ WAY (FT) (FT) (FT) (FT) (n) === ===== ========= ================= ====== ===== ====== ===== ======= 1 30.0 20.0 0.018/0.018/0.020 0.67 2.00 0.0313 0.167 0.0150 GLOBAL STREET FLOW-DEPTH CONSTRAINTS: 1. Relative Flow-Depth = 0.00 FEET as (Maximum Allowable Street Flow Depth) - (Top-of-Curb) 2. (Depth)*(Velocity) Constraint = 6.0 (FT*FT/S) *SIZE PIPE WITH A FLOW CAPACITY GREATER THAN OR EQUAL TO THE UPSTREAM TRIBUTARY PIPE.* *USER-SPECIFIED MINIMUM TOPOGRAPHIC SLOPE ADJUSTMENT NOT SELECTED **************************************************************************** FLOW PROCESS FROM NODE 2.01 TO NODE 2.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 139.50 ELEVATION DATA: UPSTREAM(FEET) = 15.70 DOWNSTREAM(FEET) = 14.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 5.291 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 2.191 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 0.16 0.20 0.100 75 5.29 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 0.31 TOTAL AREA(ACRES) = 0.16 PEAK FLOW RATE(CFS) = 0.31 Page 1 P2-Q2.RES **************************************************************************** FLOW PROCESS FROM NODE 2.02 TO NODE 2.03 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 92.50 MANNING'S N = 0.011 DEPTH OF FLOW IN 6.0 INCH PIPE IS 3.3 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 2.85 ESTIMATED PIPE DIAMETER(INCH) = 6.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 0.31 PIPE TRAVEL TIME(MIN.) = 0.54 Tc(MIN.) = 5.83 LONGEST FLOWPATH FROM NODE 2.01 TO NODE 2.03 = 232.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 2.03 TO NODE 2.03 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 5.83 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 2.072 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.27 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.27 SUBAREA RUNOFF(CFS) = 0.50 EFFECTIVE AREA(ACRES) = 0.43 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 0.4 PEAK FLOW RATE(CFS) = 0.79 ============================================================================ END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 0.4 TC(MIN.) = 5.83 EFFECTIVE AREA(ACRES) = 0.43 AREA-AVERAGED Fm(INCH/HR)= 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.100 PEAK FLOW RATE(CFS) = 0.79 ============================================================================ ============================================================================ END OF RATIONAL METHOD ANALYSIS Page 2 P3-Q2.RES ____________________________________________________________________________ **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 ORANGE COUNTY HYDROLOGY CRITERION) (c) Copyright 1983-2008 Advanced Engineering Software (aes) Ver. 15.0 Release Date: 04/01/2008 License ID 1204 Analysis prepared by: Adams-Streeter Civil Engineers, Inc. 15 Corporate Park Irvine, CA 92606 949-474-2330 ---------------------------------------------------------------------------- FILE NAME: DUNES-3.DAT TIME/DATE OF STUDY: 12:54 07/05/2018 ============================================================================ USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ============================================================================ --*TIME-OF-CONCENTRATION MODEL*-- USER SPECIFIED STORM EVENT(YEAR) = 2.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 6.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 0.95 *DATA BANK RAINFALL USED* *ANTECEDENT MOISTURE CONDITION (AMC) II ASSUMED FOR RATIONAL METHOD* *USER-DEFINED STREET-SECTIONS FOR COUPLED PIPEFLOW AND STREETFLOW MODEL* HALF- CROWN TO STREET-CROSSFALL: CURB GUTTER-GEOMETRIES: MANNING WIDTH CROSSFALL IN- / OUT-/PARK- HEIGHT WIDTH LIP HIKE FACTOR NO. (FT) (FT) SIDE / SIDE/ WAY (FT) (FT) (FT) (FT) (n) === ===== ========= ================= ====== ===== ====== ===== ======= 1 30.0 20.0 0.018/0.018/0.020 0.67 2.00 0.0313 0.167 0.0150 GLOBAL STREET FLOW-DEPTH CONSTRAINTS: 1. Relative Flow-Depth = 0.00 FEET as (Maximum Allowable Street Flow Depth) - (Top-of-Curb) 2. (Depth)*(Velocity) Constraint = 6.0 (FT*FT/S) *SIZE PIPE WITH A FLOW CAPACITY GREATER THAN OR EQUAL TO THE UPSTREAM TRIBUTARY PIPE.* *USER-SPECIFIED MINIMUM TOPOGRAPHIC SLOPE ADJUSTMENT NOT SELECTED **************************************************************************** FLOW PROCESS FROM NODE 3.01 TO NODE 3.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 106.80 ELEVATION DATA: UPSTREAM(FEET) = 13.20 DOWNSTREAM(FEET) = 12.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 5.000 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 2.264 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 0.12 0.20 0.100 75 5.00 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 0.24 TOTAL AREA(ACRES) = 0.12 PEAK FLOW RATE(CFS) = 0.24 Page 1 P3-Q2.RES **************************************************************************** FLOW PROCESS FROM NODE 3.02 TO NODE 3.03 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 65.20 MANNING'S N = 0.011 DEPTH OF FLOW IN 6.0 INCH PIPE IS 2.8 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 2.70 ESTIMATED PIPE DIAMETER(INCH) = 6.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 0.24 PIPE TRAVEL TIME(MIN.) = 0.40 Tc(MIN.) = 5.40 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.03 = 172.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.03 TO NODE 3.03 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 5.40 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 2.165 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.57 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.57 SUBAREA RUNOFF(CFS) = 1.10 EFFECTIVE AREA(ACRES) = 0.69 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 0.7 PEAK FLOW RATE(CFS) = 1.33 **************************************************************************** FLOW PROCESS FROM NODE 3.03 TO NODE 3.04 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 263.00 MANNING'S N = 0.011 DEPTH OF FLOW IN 9.0 INCH PIPE IS 6.3 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 4.04 ESTIMATED PIPE DIAMETER(INCH) = 9.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 1.33 PIPE TRAVEL TIME(MIN.) = 1.09 Tc(MIN.) = 6.49 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.04 = 435.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.04 TO NODE 3.04 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 6.49 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.949 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.74 0.20 0.100 75 COMMERCIAL D 0.35 0.20 0.100 75 COMMERCIAL D 0.28 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 Page 2 P3-Q2.RES SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.37 SUBAREA RUNOFF(CFS) = 2.38 EFFECTIVE AREA(ACRES) = 2.06 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 2.1 PEAK FLOW RATE(CFS) = 3.58 **************************************************************************** FLOW PROCESS FROM NODE 3.04 TO NODE 3.05 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 163.10 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 8.2 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.24 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 3.58 PIPE TRAVEL TIME(MIN.) = 0.52 Tc(MIN.) = 7.01 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.05 = 598.10 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.05 TO NODE 3.05 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.01 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.865 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.23 0.20 0.100 75 COMMERCIAL D 0.56 0.20 0.100 75 COMMERCIAL D 0.49 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.28 SUBAREA RUNOFF(CFS) = 2.13 EFFECTIVE AREA(ACRES) = 3.34 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 3.3 PEAK FLOW RATE(CFS) = 5.55 **************************************************************************** FLOW PROCESS FROM NODE 3.05 TO NODE 3.06 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 295.70 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 11.0 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.73 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 5.55 PIPE TRAVEL TIME(MIN.) = 0.86 Tc(MIN.) = 7.87 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.06 = 893.80 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.06 TO NODE 3.06 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.87 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.745 Page 3 P3-Q2.RES SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.67 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.67 SUBAREA RUNOFF(CFS) = 1.04 EFFECTIVE AREA(ACRES) = 4.01 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 4.0 PEAK FLOW RATE(CFS) = 6.23 **************************************************************************** FLOW PROCESS FROM NODE 3.06 TO NODE 3.07 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 152.60 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 10.2 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.02 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 6.23 PIPE TRAVEL TIME(MIN.) = 0.42 Tc(MIN.) = 8.29 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.07 = 1046.40 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.07 TO NODE 3.07 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 8.29 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.694 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 1.08 0.20 0.100 75 COMMERCIAL D 0.11 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.19 SUBAREA RUNOFF(CFS) = 1.79 EFFECTIVE AREA(ACRES) = 5.20 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 5.2 PEAK FLOW RATE(CFS) = 7.83 **************************************************************************** FLOW PROCESS FROM NODE 3.07 TO NODE 3.08 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 18.00 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 11.9 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.33 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 7.83 PIPE TRAVEL TIME(MIN.) = 0.05 Tc(MIN.) = 8.34 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.08 = 1064.40 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.08 TO NODE 3.08 IS CODE = 81 ---------------------------------------------------------------------------- Page 4 P3-Q2.RES >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 8.34 * 2 YEAR RAINFALL INTENSITY(INCH/HR) = 1.688 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.20 0.20 0.100 75 COMMERCIAL D 0.11 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.31 SUBAREA RUNOFF(CFS) = 0.47 EFFECTIVE AREA(ACRES) = 5.51 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 5.5 PEAK FLOW RATE(CFS) = 8.27 **************************************************************************** FLOW PROCESS FROM NODE 3.08 TO NODE 3.09 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 48.00 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 12.4 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.39 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 8.27 PIPE TRAVEL TIME(MIN.) = 0.13 Tc(MIN.) = 8.46 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.09 = 1112.40 FEET. ============================================================================ END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 5.5 TC(MIN.) = 8.46 EFFECTIVE AREA(ACRES) = 5.51 AREA-AVERAGED Fm(INCH/HR)= 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.100 PEAK FLOW RATE(CFS) = 8.27 ============================================================================ ============================================================================ END OF RATIONAL METHOD ANALYSIS Page 5 Proposed Rational Method Q10 Hydrology P1-Q10.RES ____________________________________________________________________________ **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 ORANGE COUNTY HYDROLOGY CRITERION) (c) Copyright 1983-2008 Advanced Engineering Software (aes) Ver. 15.0 Release Date: 04/01/2008 License ID 1204 Analysis prepared by: Adams-Streeter Civil Engineers, Inc. 15 Corporate Park Irvine, CA 92606 949-474-2330 ---------------------------------------------------------------------------- FILE NAME: DUNES-1.DAT TIME/DATE OF STUDY: 12:49 07/05/2018 ============================================================================ USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ============================================================================ --*TIME-OF-CONCENTRATION MODEL*-- USER SPECIFIED STORM EVENT(YEAR) = 10.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 6.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 0.95 *DATA BANK RAINFALL USED* *ANTECEDENT MOISTURE CONDITION (AMC) II ASSUMED FOR RATIONAL METHOD* *USER-DEFINED STREET-SECTIONS FOR COUPLED PIPEFLOW AND STREETFLOW MODEL* HALF- CROWN TO STREET-CROSSFALL: CURB GUTTER-GEOMETRIES: MANNING WIDTH CROSSFALL IN- / OUT-/PARK- HEIGHT WIDTH LIP HIKE FACTOR NO. (FT) (FT) SIDE / SIDE/ WAY (FT) (FT) (FT) (FT) (n) === ===== ========= ================= ====== ===== ====== ===== ======= 1 30.0 20.0 0.018/0.018/0.020 0.67 2.00 0.0313 0.167 0.0150 GLOBAL STREET FLOW-DEPTH CONSTRAINTS: 1. Relative Flow-Depth = 0.00 FEET as (Maximum Allowable Street Flow Depth) - (Top-of-Curb) 2. (Depth)*(Velocity) Constraint = 6.0 (FT*FT/S) *SIZE PIPE WITH A FLOW CAPACITY GREATER THAN OR EQUAL TO THE UPSTREAM TRIBUTARY PIPE.* *USER-SPECIFIED MINIMUM TOPOGRAPHIC SLOPE ADJUSTMENT NOT SELECTED **************************************************************************** FLOW PROCESS FROM NODE 1.01 TO NODE 1.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 433.00 ELEVATION DATA: UPSTREAM(FEET) = 19.00 DOWNSTREAM(FEET) = 13.30 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 8.196 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 3.058 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 1.18 0.20 0.100 75 8.20 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 3.23 TOTAL AREA(ACRES) = 1.18 PEAK FLOW RATE(CFS) = 3.23 Page 1 P1-Q10.RES **************************************************************************** FLOW PROCESS FROM NODE 1.02 TO NODE 1.03 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 97.40 MANNING'S N = 0.011 DEPTH OF FLOW IN 12.0 INCH PIPE IS 9.2 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 4.97 ESTIMATED PIPE DIAMETER(INCH) = 12.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 3.23 PIPE TRAVEL TIME(MIN.) = 0.33 Tc(MIN.) = 8.52 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.03 = 530.40 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.03 TO NODE 1.03 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 8.52 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 2.991 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.16 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.16 SUBAREA RUNOFF(CFS) = 0.43 EFFECTIVE AREA(ACRES) = 1.34 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.3 PEAK FLOW RATE(CFS) = 3.58 **************************************************************************** FLOW PROCESS FROM NODE 1.03 TO NODE 1.04 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 93.40 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 8.2 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.25 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 3.58 PIPE TRAVEL TIME(MIN.) = 0.30 Tc(MIN.) = 8.82 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.04 = 623.80 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.04 TO NODE 1.04 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 8.82 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 2.933 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.21 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.21 SUBAREA RUNOFF(CFS) = 0.55 Page 2 P1-Q10.RES EFFECTIVE AREA(ACRES) = 1.55 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.5 PEAK FLOW RATE(CFS) = 4.06 **************************************************************************** FLOW PROCESS FROM NODE 1.04 TO NODE 1.05 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 143.20 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 8.8 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.41 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 4.06 PIPE TRAVEL TIME(MIN.) = 0.44 Tc(MIN.) = 9.26 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.05 = 767.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.05 TO NODE 1.06 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 73.60 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 8.8 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.41 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 4.06 PIPE TRAVEL TIME(MIN.) = 0.23 Tc(MIN.) = 9.49 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.06 = 840.60 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.06 TO NODE 1.06 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 9.49 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 2.813 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.10 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.10 SUBAREA RUNOFF(CFS) = 0.25 EFFECTIVE AREA(ACRES) = 1.65 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.6 PEAK FLOW RATE(CFS) = 4.15 **************************************************************************** FLOW PROCESS FROM NODE 1.06 TO NODE 1.07 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 72.10 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 8.9 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.43 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 Page 3 P1-Q10.RES PIPE-FLOW(CFS) = 4.15 PIPE TRAVEL TIME(MIN.) = 0.22 Tc(MIN.) = 9.71 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.07 = 912.70 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.07 TO NODE 1.07 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 9.71 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 2.776 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.14 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.14 SUBAREA RUNOFF(CFS) = 0.35 EFFECTIVE AREA(ACRES) = 1.79 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.8 PEAK FLOW RATE(CFS) = 4.44 **************************************************************************** FLOW PROCESS FROM NODE 1.07 TO NODE 1.08 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 112.50 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 9.4 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.51 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 4.44 PIPE TRAVEL TIME(MIN.) = 0.34 Tc(MIN.) = 10.05 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.08 = 1025.20 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.08 TO NODE 1.08 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 10.05 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 2.721 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.09 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.09 SUBAREA RUNOFF(CFS) = 0.22 EFFECTIVE AREA(ACRES) = 1.88 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.9 PEAK FLOW RATE(CFS) = 4.57 **************************************************************************** FLOW PROCESS FROM NODE 1.08 TO NODE 1.09 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 115.30 MANNING'S N = 0.011 Page 4 P1-Q10.RES DEPTH OF FLOW IN 15.0 INCH PIPE IS 9.6 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.54 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 4.57 PIPE TRAVEL TIME(MIN.) = 0.35 Tc(MIN.) = 10.40 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.09 = 1140.50 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.09 TO NODE 1.09 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 10.40 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 2.669 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.35 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.35 SUBAREA RUNOFF(CFS) = 0.83 EFFECTIVE AREA(ACRES) = 2.23 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 2.2 PEAK FLOW RATE(CFS) = 5.32 **************************************************************************** FLOW PROCESS FROM NODE 1.09 TO NODE 1.10 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 156.50 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 10.7 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.70 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 5.32 PIPE TRAVEL TIME(MIN.) = 0.46 Tc(MIN.) = 10.85 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.10 = 1297.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.10 TO NODE 1.10 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 10.85 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 2.604 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.34 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.34 SUBAREA RUNOFF(CFS) = 0.79 EFFECTIVE AREA(ACRES) = 2.57 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 2.6 PEAK FLOW RATE(CFS) = 5.98 **************************************************************************** FLOW PROCESS FROM NODE 1.10 TO NODE 1.11 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< Page 5 P1-Q10.RES ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 165.40 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 11.8 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.77 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 5.98 PIPE TRAVEL TIME(MIN.) = 0.48 Tc(MIN.) = 11.33 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.11 = 1462.40 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.11 TO NODE 1.11 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 11.33 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 2.540 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.80 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.80 SUBAREA RUNOFF(CFS) = 1.81 EFFECTIVE AREA(ACRES) = 3.37 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 3.4 PEAK FLOW RATE(CFS) = 7.64 **************************************************************************** FLOW PROCESS FROM NODE 1.11 TO NODE 1.12 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 100.30 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 11.7 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.29 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 7.64 PIPE TRAVEL TIME(MIN.) = 0.27 Tc(MIN.) = 11.60 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.12 = 1562.70 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.12 TO NODE 1.12 IS CODE = 10 ---------------------------------------------------------------------------- >>>>>MAIN-STREAM MEMORY COPIED ONTO MEMORY BANK # 1 <<<<< ============================================================================ **************************************************************************** FLOW PROCESS FROM NODE 1.00 TO NODE 1.13 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 312.20 ELEVATION DATA: UPSTREAM(FEET) = 19.00 DOWNSTREAM(FEET) = 13.60 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 6.809 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 3.401 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc Page 6 P1-Q10.RES LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 1.43 0.20 0.100 75 6.81 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 4.35 TOTAL AREA(ACRES) = 1.43 PEAK FLOW RATE(CFS) = 4.35 **************************************************************************** FLOW PROCESS FROM NODE 1.13 TO NODE 1.14 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 65.30 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 9.2 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.49 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 4.35 PIPE TRAVEL TIME(MIN.) = 0.20 Tc(MIN.) = 7.01 LONGEST FLOWPATH FROM NODE 1.00 TO NODE 1.14 = 377.50 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.14 TO NODE 1.14 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.01 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 3.346 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.80 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.80 SUBAREA RUNOFF(CFS) = 2.39 EFFECTIVE AREA(ACRES) = 2.23 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 2.2 PEAK FLOW RATE(CFS) = 6.67 **************************************************************************** FLOW PROCESS FROM NODE 1.14 TO NODE 1.15 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 143.60 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 10.7 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.12 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 6.67 PIPE TRAVEL TIME(MIN.) = 0.39 Tc(MIN.) = 7.40 LONGEST FLOWPATH FROM NODE 1.00 TO NODE 1.15 = 521.10 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.15 TO NODE 1.15 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.40 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 3.243 SUBAREA LOSS RATE DATA(AMC II): Page 7 P1-Q10.RES DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 1.01 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.01 SUBAREA RUNOFF(CFS) = 2.93 EFFECTIVE AREA(ACRES) = 3.24 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 3.2 PEAK FLOW RATE(CFS) = 9.40 **************************************************************************** FLOW PROCESS FROM NODE 1.15 TO NODE 1.16 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 195.70 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 13.7 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.50 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 9.40 PIPE TRAVEL TIME(MIN.) = 0.50 Tc(MIN.) = 7.90 LONGEST FLOWPATH FROM NODE 1.00 TO NODE 1.16 = 716.80 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.16 TO NODE 1.16 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.90 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 3.124 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 1.23 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.23 SUBAREA RUNOFF(CFS) = 3.44 EFFECTIVE AREA(ACRES) = 4.47 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 4.5 PEAK FLOW RATE(CFS) = 12.49 **************************************************************************** FLOW PROCESS FROM NODE 1.16 TO NODE 1.12 IS CODE = 11 ---------------------------------------------------------------------------- >>>>>CONFLUENCE MEMORY BANK # 1 WITH THE MAIN-STREAM MEMORY<<<<< ============================================================================ ** MAIN STREAM CONFLUENCE DATA ** STREAM Q Tc Intensity Fp(Fm) Ap Ae HEADWATER NUMBER (CFS) (MIN.) (INCH/HR) (INCH/HR) (ACRES) NODE 1 12.49 7.90 3.124 0.20( 0.02) 0.10 4.5 1.00 LONGEST FLOWPATH FROM NODE 1.00 TO NODE 1.12 = 716.80 FEET. ** MEMORY BANK # 1 CONFLUENCE DATA ** STREAM Q Tc Intensity Fp(Fm) Ap Ae HEADWATER NUMBER (CFS) (MIN.) (INCH/HR) (INCH/HR) (ACRES) NODE 1 7.64 11.60 2.507 0.20( 0.02) 0.10 3.4 1.01 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.12 = 1562.70 FEET. ** PEAK FLOW RATE TABLE ** STREAM Q Tc Intensity Fp(Fm) Ap Ae HEADWATER Page 8 P1-Q10.RES NUMBER (CFS) (MIN.) (INCH/HR) (INCH/HR) (ACRES) NODE 1 18.99 7.90 3.124 0.20( 0.02) 0.10 6.8 1.00 2 17.65 11.60 2.507 0.20( 0.02) 0.10 7.8 1.01 TOTAL AREA(ACRES) = 7.8 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 18.99 Tc(MIN.) = 7.899 EFFECTIVE AREA(ACRES) = 6.77 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 7.8 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.12 = 1562.70 FEET. ============================================================================ END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 7.8 TC(MIN.) = 7.90 EFFECTIVE AREA(ACRES) = 6.77 AREA-AVERAGED Fm(INCH/HR)= 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.100 PEAK FLOW RATE(CFS) = 18.99 ** PEAK FLOW RATE TABLE ** STREAM Q Tc Intensity Fp(Fm) Ap Ae HEADWATER NUMBER (CFS) (MIN.) (INCH/HR) (INCH/HR) (ACRES) NODE 1 18.99 7.90 3.124 0.20( 0.02) 0.10 6.8 1.00 2 17.65 11.60 2.507 0.20( 0.02) 0.10 7.8 1.01 ============================================================================ ============================================================================ END OF RATIONAL METHOD ANALYSIS Page 9 P2-Q10.RES ____________________________________________________________________________ **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 ORANGE COUNTY HYDROLOGY CRITERION) (c) Copyright 1983-2008 Advanced Engineering Software (aes) Ver. 15.0 Release Date: 04/01/2008 License ID 1204 Analysis prepared by: Adams-Streeter Civil Engineers, Inc. 15 Corporate Park Irvine, CA 92606 949-474-2330 ---------------------------------------------------------------------------- FILE NAME: DUNES-2.DAT TIME/DATE OF STUDY: 12:52 07/05/2018 ============================================================================ USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ============================================================================ --*TIME-OF-CONCENTRATION MODEL*-- USER SPECIFIED STORM EVENT(YEAR) = 10.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 6.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 0.95 *DATA BANK RAINFALL USED* *ANTECEDENT MOISTURE CONDITION (AMC) II ASSUMED FOR RATIONAL METHOD* *USER-DEFINED STREET-SECTIONS FOR COUPLED PIPEFLOW AND STREETFLOW MODEL* HALF- CROWN TO STREET-CROSSFALL: CURB GUTTER-GEOMETRIES: MANNING WIDTH CROSSFALL IN- / OUT-/PARK- HEIGHT WIDTH LIP HIKE FACTOR NO. (FT) (FT) SIDE / SIDE/ WAY (FT) (FT) (FT) (FT) (n) === ===== ========= ================= ====== ===== ====== ===== ======= 1 30.0 20.0 0.018/0.018/0.020 0.67 2.00 0.0313 0.167 0.0150 GLOBAL STREET FLOW-DEPTH CONSTRAINTS: 1. Relative Flow-Depth = 0.00 FEET as (Maximum Allowable Street Flow Depth) - (Top-of-Curb) 2. (Depth)*(Velocity) Constraint = 6.0 (FT*FT/S) *SIZE PIPE WITH A FLOW CAPACITY GREATER THAN OR EQUAL TO THE UPSTREAM TRIBUTARY PIPE.* *USER-SPECIFIED MINIMUM TOPOGRAPHIC SLOPE ADJUSTMENT NOT SELECTED **************************************************************************** FLOW PROCESS FROM NODE 2.01 TO NODE 2.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 139.50 ELEVATION DATA: UPSTREAM(FEET) = 15.70 DOWNSTREAM(FEET) = 14.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 5.291 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 3.930 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 0.16 0.20 0.100 75 5.29 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 0.56 TOTAL AREA(ACRES) = 0.16 PEAK FLOW RATE(CFS) = 0.56 Page 1 P2-Q10.RES **************************************************************************** FLOW PROCESS FROM NODE 2.02 TO NODE 2.03 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 92.50 MANNING'S N = 0.011 DEPTH OF FLOW IN 9.0 INCH PIPE IS 3.7 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 3.31 ESTIMATED PIPE DIAMETER(INCH) = 9.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 0.56 PIPE TRAVEL TIME(MIN.) = 0.47 Tc(MIN.) = 5.76 LONGEST FLOWPATH FROM NODE 2.01 TO NODE 2.03 = 232.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 2.03 TO NODE 2.03 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 5.76 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 3.744 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.27 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.27 SUBAREA RUNOFF(CFS) = 0.91 EFFECTIVE AREA(ACRES) = 0.43 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 0.4 PEAK FLOW RATE(CFS) = 1.44 ============================================================================ END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 0.4 TC(MIN.) = 5.76 EFFECTIVE AREA(ACRES) = 0.43 AREA-AVERAGED Fm(INCH/HR)= 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.100 PEAK FLOW RATE(CFS) = 1.44 ============================================================================ ============================================================================ END OF RATIONAL METHOD ANALYSIS Page 2 P3-Q10.RES ____________________________________________________________________________ **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 ORANGE COUNTY HYDROLOGY CRITERION) (c) Copyright 1983-2008 Advanced Engineering Software (aes) Ver. 15.0 Release Date: 04/01/2008 License ID 1204 Analysis prepared by: Adams-Streeter Civil Engineers, Inc. 15 Corporate Park Irvine, CA 92606 949-474-2330 ---------------------------------------------------------------------------- FILE NAME: DUNES-3.DAT TIME/DATE OF STUDY: 12:56 07/05/2018 ============================================================================ USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ============================================================================ --*TIME-OF-CONCENTRATION MODEL*-- USER SPECIFIED STORM EVENT(YEAR) = 10.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 6.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 0.95 *DATA BANK RAINFALL USED* *ANTECEDENT MOISTURE CONDITION (AMC) II ASSUMED FOR RATIONAL METHOD* *USER-DEFINED STREET-SECTIONS FOR COUPLED PIPEFLOW AND STREETFLOW MODEL* HALF- CROWN TO STREET-CROSSFALL: CURB GUTTER-GEOMETRIES: MANNING WIDTH CROSSFALL IN- / OUT-/PARK- HEIGHT WIDTH LIP HIKE FACTOR NO. (FT) (FT) SIDE / SIDE/ WAY (FT) (FT) (FT) (FT) (n) === ===== ========= ================= ====== ===== ====== ===== ======= 1 30.0 20.0 0.018/0.018/0.020 0.67 2.00 0.0313 0.167 0.0150 GLOBAL STREET FLOW-DEPTH CONSTRAINTS: 1. Relative Flow-Depth = 0.00 FEET as (Maximum Allowable Street Flow Depth) - (Top-of-Curb) 2. (Depth)*(Velocity) Constraint = 6.0 (FT*FT/S) *SIZE PIPE WITH A FLOW CAPACITY GREATER THAN OR EQUAL TO THE UPSTREAM TRIBUTARY PIPE.* *USER-SPECIFIED MINIMUM TOPOGRAPHIC SLOPE ADJUSTMENT NOT SELECTED **************************************************************************** FLOW PROCESS FROM NODE 3.01 TO NODE 3.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 106.80 ELEVATION DATA: UPSTREAM(FEET) = 13.20 DOWNSTREAM(FEET) = 12.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 5.000 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 4.060 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 0.12 0.20 0.100 75 5.00 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 0.44 TOTAL AREA(ACRES) = 0.12 PEAK FLOW RATE(CFS) = 0.44 Page 1 P3-Q10.RES **************************************************************************** FLOW PROCESS FROM NODE 3.02 TO NODE 3.03 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 65.20 MANNING'S N = 0.011 DEPTH OF FLOW IN 6.0 INCH PIPE IS 4.1 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 3.05 ESTIMATED PIPE DIAMETER(INCH) = 6.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 0.44 PIPE TRAVEL TIME(MIN.) = 0.36 Tc(MIN.) = 5.36 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.03 = 172.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.03 TO NODE 3.03 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 5.36 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 3.903 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.57 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.57 SUBAREA RUNOFF(CFS) = 1.99 EFFECTIVE AREA(ACRES) = 0.69 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 0.7 PEAK FLOW RATE(CFS) = 2.41 **************************************************************************** FLOW PROCESS FROM NODE 3.03 TO NODE 3.04 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 263.00 MANNING'S N = 0.011 DEPTH OF FLOW IN 12.0 INCH PIPE IS 7.4 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 4.73 ESTIMATED PIPE DIAMETER(INCH) = 12.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 2.41 PIPE TRAVEL TIME(MIN.) = 0.93 Tc(MIN.) = 6.28 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.04 = 435.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.04 TO NODE 3.04 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 6.28 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 3.562 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.74 0.20 0.100 75 COMMERCIAL D 0.35 0.20 0.100 75 COMMERCIAL D 0.28 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 Page 2 P3-Q10.RES SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.37 SUBAREA RUNOFF(CFS) = 4.37 EFFECTIVE AREA(ACRES) = 2.06 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 2.1 PEAK FLOW RATE(CFS) = 6.57 **************************************************************************** FLOW PROCESS FROM NODE 3.04 TO NODE 3.05 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 163.10 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 10.6 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.10 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 6.57 PIPE TRAVEL TIME(MIN.) = 0.45 Tc(MIN.) = 6.73 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.05 = 598.10 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.05 TO NODE 3.05 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 6.73 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 3.424 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.23 0.20 0.100 75 COMMERCIAL D 0.56 0.20 0.100 75 COMMERCIAL D 0.49 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.28 SUBAREA RUNOFF(CFS) = 3.92 EFFECTIVE AREA(ACRES) = 3.34 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 3.3 PEAK FLOW RATE(CFS) = 10.23 **************************************************************************** FLOW PROCESS FROM NODE 3.05 TO NODE 3.06 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 295.70 MANNING'S N = 0.011 DEPTH OF FLOW IN 21.0 INCH PIPE IS 12.6 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.80 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 10.23 PIPE TRAVEL TIME(MIN.) = 0.72 Tc(MIN.) = 7.45 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.06 = 893.80 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.06 TO NODE 3.06 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.45 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 3.230 Page 3 P3-Q10.RES SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.67 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.67 SUBAREA RUNOFF(CFS) = 1.94 EFFECTIVE AREA(ACRES) = 4.01 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 4.0 PEAK FLOW RATE(CFS) = 11.58 **************************************************************************** FLOW PROCESS FROM NODE 3.06 TO NODE 3.07 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 152.60 MANNING'S N = 0.011 DEPTH OF FLOW IN 21.0 INCH PIPE IS 13.7 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.98 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 11.58 PIPE TRAVEL TIME(MIN.) = 0.36 Tc(MIN.) = 7.82 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.07 = 1046.40 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.07 TO NODE 3.07 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.82 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 3.143 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 1.08 0.20 0.100 75 COMMERCIAL D 0.11 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.19 SUBAREA RUNOFF(CFS) = 3.34 EFFECTIVE AREA(ACRES) = 5.20 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 5.2 PEAK FLOW RATE(CFS) = 14.61 **************************************************************************** FLOW PROCESS FROM NODE 3.07 TO NODE 3.08 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 18.00 MANNING'S N = 0.011 DEPTH OF FLOW IN 21.0 INCH PIPE IS 16.5 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 7.23 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 14.61 PIPE TRAVEL TIME(MIN.) = 0.04 Tc(MIN.) = 7.86 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.08 = 1064.40 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.08 TO NODE 3.08 IS CODE = 81 ---------------------------------------------------------------------------- Page 4 P3-Q10.RES >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.86 * 10 YEAR RAINFALL INTENSITY(INCH/HR) = 3.133 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.20 0.20 0.100 75 COMMERCIAL D 0.11 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.31 SUBAREA RUNOFF(CFS) = 0.87 EFFECTIVE AREA(ACRES) = 5.51 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 5.5 PEAK FLOW RATE(CFS) = 15.44 **************************************************************************** FLOW PROCESS FROM NODE 3.08 TO NODE 3.09 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 48.00 MANNING'S N = 0.011 DEPTH OF FLOW IN 24.0 INCH PIPE IS 14.9 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 7.53 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 15.44 PIPE TRAVEL TIME(MIN.) = 0.11 Tc(MIN.) = 7.96 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.09 = 1112.40 FEET. ============================================================================ END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 5.5 TC(MIN.) = 7.96 EFFECTIVE AREA(ACRES) = 5.51 AREA-AVERAGED Fm(INCH/HR)= 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.100 PEAK FLOW RATE(CFS) = 15.44 ============================================================================ ============================================================================ END OF RATIONAL METHOD ANALYSIS Page 5 Proposed Rational Method Q25 Hydrology P1-Q25.RES ____________________________________________________________________________ **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 ORANGE COUNTY HYDROLOGY CRITERION) (c) Copyright 1983-2008 Advanced Engineering Software (aes) Ver. 15.0 Release Date: 04/01/2008 License ID 1204 Analysis prepared by: Adams-Streeter Civil Engineers, Inc. 15 Corporate Park Irvine, CA 92606 949-474-2330 ---------------------------------------------------------------------------- FILE NAME: DUNES-1.DAT TIME/DATE OF STUDY: 12:51 07/05/2018 ============================================================================ USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ============================================================================ --*TIME-OF-CONCENTRATION MODEL*-- USER SPECIFIED STORM EVENT(YEAR) = 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 6.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 0.95 *DATA BANK RAINFALL USED* *ANTECEDENT MOISTURE CONDITION (AMC) II ASSUMED FOR RATIONAL METHOD* *USER-DEFINED STREET-SECTIONS FOR COUPLED PIPEFLOW AND STREETFLOW MODEL* HALF- CROWN TO STREET-CROSSFALL: CURB GUTTER-GEOMETRIES: MANNING WIDTH CROSSFALL IN- / OUT-/PARK- HEIGHT WIDTH LIP HIKE FACTOR NO. (FT) (FT) SIDE / SIDE/ WAY (FT) (FT) (FT) (FT) (n) === ===== ========= ================= ====== ===== ====== ===== ======= 1 30.0 20.0 0.018/0.018/0.020 0.67 2.00 0.0313 0.167 0.0150 GLOBAL STREET FLOW-DEPTH CONSTRAINTS: 1. Relative Flow-Depth = 0.00 FEET as (Maximum Allowable Street Flow Depth) - (Top-of-Curb) 2. (Depth)*(Velocity) Constraint = 6.0 (FT*FT/S) *SIZE PIPE WITH A FLOW CAPACITY GREATER THAN OR EQUAL TO THE UPSTREAM TRIBUTARY PIPE.* *USER-SPECIFIED MINIMUM TOPOGRAPHIC SLOPE ADJUSTMENT NOT SELECTED **************************************************************************** FLOW PROCESS FROM NODE 1.01 TO NODE 1.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 433.00 ELEVATION DATA: UPSTREAM(FEET) = 19.00 DOWNSTREAM(FEET) = 13.30 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 8.196 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.647 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 1.18 0.20 0.100 75 8.20 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 3.85 TOTAL AREA(ACRES) = 1.18 PEAK FLOW RATE(CFS) = 3.85 Page 1 P1-Q25.RES **************************************************************************** FLOW PROCESS FROM NODE 1.02 TO NODE 1.03 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 97.40 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 8.5 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.34 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 3.85 PIPE TRAVEL TIME(MIN.) = 0.30 Tc(MIN.) = 8.50 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.03 = 530.40 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.03 TO NODE 1.03 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 8.50 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.572 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.16 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.16 SUBAREA RUNOFF(CFS) = 0.51 EFFECTIVE AREA(ACRES) = 1.34 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.3 PEAK FLOW RATE(CFS) = 4.28 **************************************************************************** FLOW PROCESS FROM NODE 1.03 TO NODE 1.04 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 93.40 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 9.1 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.47 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 4.28 PIPE TRAVEL TIME(MIN.) = 0.28 Tc(MIN.) = 8.78 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.04 = 623.80 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.04 TO NODE 1.04 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 8.78 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.506 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.21 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.21 SUBAREA RUNOFF(CFS) = 0.66 Page 2 P1-Q25.RES EFFECTIVE AREA(ACRES) = 1.55 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.5 PEAK FLOW RATE(CFS) = 4.86 **************************************************************************** FLOW PROCESS FROM NODE 1.04 TO NODE 1.05 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 143.20 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 10.0 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.61 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 4.86 PIPE TRAVEL TIME(MIN.) = 0.43 Tc(MIN.) = 9.21 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.05 = 767.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.05 TO NODE 1.06 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 73.60 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 10.0 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.61 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 4.86 PIPE TRAVEL TIME(MIN.) = 0.22 Tc(MIN.) = 9.43 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.06 = 840.60 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.06 TO NODE 1.06 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 9.43 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.369 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.10 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.10 SUBAREA RUNOFF(CFS) = 0.30 EFFECTIVE AREA(ACRES) = 1.65 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.6 PEAK FLOW RATE(CFS) = 4.97 **************************************************************************** FLOW PROCESS FROM NODE 1.06 TO NODE 1.07 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 72.10 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 10.1 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.63 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 Page 3 P1-Q25.RES PIPE-FLOW(CFS) = 4.97 PIPE TRAVEL TIME(MIN.) = 0.21 Tc(MIN.) = 9.64 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.07 = 912.70 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.07 TO NODE 1.07 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 9.64 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.326 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.14 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.14 SUBAREA RUNOFF(CFS) = 0.42 EFFECTIVE AREA(ACRES) = 1.79 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.8 PEAK FLOW RATE(CFS) = 5.33 **************************************************************************** FLOW PROCESS FROM NODE 1.07 TO NODE 1.08 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 112.50 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 10.7 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.70 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 5.33 PIPE TRAVEL TIME(MIN.) = 0.33 Tc(MIN.) = 9.97 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.08 = 1025.20 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.08 TO NODE 1.08 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 9.97 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.264 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.09 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.09 SUBAREA RUNOFF(CFS) = 0.26 EFFECTIVE AREA(ACRES) = 1.88 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.9 PEAK FLOW RATE(CFS) = 5.49 **************************************************************************** FLOW PROCESS FROM NODE 1.08 TO NODE 1.09 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 115.30 MANNING'S N = 0.011 Page 4 P1-Q25.RES DEPTH OF FLOW IN 15.0 INCH PIPE IS 10.9 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.72 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 5.49 PIPE TRAVEL TIME(MIN.) = 0.34 Tc(MIN.) = 10.31 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.09 = 1140.50 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.09 TO NODE 1.09 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 10.31 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.203 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.35 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.35 SUBAREA RUNOFF(CFS) = 1.00 EFFECTIVE AREA(ACRES) = 2.23 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 2.2 PEAK FLOW RATE(CFS) = 6.39 **************************************************************************** FLOW PROCESS FROM NODE 1.09 TO NODE 1.10 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 156.50 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 10.4 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.06 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 6.39 PIPE TRAVEL TIME(MIN.) = 0.43 Tc(MIN.) = 10.74 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.10 = 1297.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.10 TO NODE 1.10 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 10.74 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.130 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.34 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.34 SUBAREA RUNOFF(CFS) = 0.95 EFFECTIVE AREA(ACRES) = 2.57 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 2.6 PEAK FLOW RATE(CFS) = 7.19 **************************************************************************** FLOW PROCESS FROM NODE 1.10 TO NODE 1.11 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< Page 5 P1-Q25.RES ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 165.40 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 11.2 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.22 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 7.19 PIPE TRAVEL TIME(MIN.) = 0.44 Tc(MIN.) = 11.18 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.11 = 1462.40 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.11 TO NODE 1.11 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 11.18 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.059 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.80 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.80 SUBAREA RUNOFF(CFS) = 2.19 EFFECTIVE AREA(ACRES) = 3.37 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 3.4 PEAK FLOW RATE(CFS) = 9.22 **************************************************************************** FLOW PROCESS FROM NODE 1.11 TO NODE 1.12 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 100.30 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 13.5 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.49 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 9.22 PIPE TRAVEL TIME(MIN.) = 0.26 Tc(MIN.) = 11.44 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.12 = 1562.70 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.12 TO NODE 1.12 IS CODE = 10 ---------------------------------------------------------------------------- >>>>>MAIN-STREAM MEMORY COPIED ONTO MEMORY BANK # 1 <<<<< ============================================================================ **************************************************************************** FLOW PROCESS FROM NODE 1.00 TO NODE 1.13 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 312.20 ELEVATION DATA: UPSTREAM(FEET) = 19.00 DOWNSTREAM(FEET) = 13.60 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 6.809 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 4.050 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc Page 6 P1-Q25.RES LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 1.43 0.20 0.100 75 6.81 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 5.19 TOTAL AREA(ACRES) = 1.43 PEAK FLOW RATE(CFS) = 5.19 **************************************************************************** FLOW PROCESS FROM NODE 1.13 TO NODE 1.14 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 65.30 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 10.5 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.68 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 5.19 PIPE TRAVEL TIME(MIN.) = 0.19 Tc(MIN.) = 7.00 LONGEST FLOWPATH FROM NODE 1.00 TO NODE 1.14 = 377.50 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.14 TO NODE 1.14 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.00 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.987 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.80 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.80 SUBAREA RUNOFF(CFS) = 2.86 EFFECTIVE AREA(ACRES) = 2.23 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 2.2 PEAK FLOW RATE(CFS) = 7.96 **************************************************************************** FLOW PROCESS FROM NODE 1.14 TO NODE 1.15 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 143.60 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 12.0 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.35 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 7.96 PIPE TRAVEL TIME(MIN.) = 0.38 Tc(MIN.) = 7.38 LONGEST FLOWPATH FROM NODE 1.00 TO NODE 1.15 = 521.10 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.15 TO NODE 1.15 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.38 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.870 SUBAREA LOSS RATE DATA(AMC II): Page 7 P1-Q25.RES DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 1.01 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.01 SUBAREA RUNOFF(CFS) = 3.50 EFFECTIVE AREA(ACRES) = 3.24 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 3.2 PEAK FLOW RATE(CFS) = 11.23 **************************************************************************** FLOW PROCESS FROM NODE 1.15 TO NODE 1.16 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 195.70 MANNING'S N = 0.011 DEPTH OF FLOW IN 21.0 INCH PIPE IS 13.4 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.94 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 11.23 PIPE TRAVEL TIME(MIN.) = 0.47 Tc(MIN.) = 7.85 LONGEST FLOWPATH FROM NODE 1.00 TO NODE 1.16 = 716.80 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.16 TO NODE 1.16 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.85 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.737 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 1.23 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.23 SUBAREA RUNOFF(CFS) = 4.12 EFFECTIVE AREA(ACRES) = 4.47 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 4.5 PEAK FLOW RATE(CFS) = 14.96 **************************************************************************** FLOW PROCESS FROM NODE 1.16 TO NODE 1.12 IS CODE = 11 ---------------------------------------------------------------------------- >>>>>CONFLUENCE MEMORY BANK # 1 WITH THE MAIN-STREAM MEMORY<<<<< ============================================================================ ** MAIN STREAM CONFLUENCE DATA ** STREAM Q Tc Intensity Fp(Fm) Ap Ae HEADWATER NUMBER (CFS) (MIN.) (INCH/HR) (INCH/HR) (ACRES) NODE 1 14.96 7.85 3.737 0.20( 0.02) 0.10 4.5 1.00 LONGEST FLOWPATH FROM NODE 1.00 TO NODE 1.12 = 716.80 FEET. ** MEMORY BANK # 1 CONFLUENCE DATA ** STREAM Q Tc Intensity Fp(Fm) Ap Ae HEADWATER NUMBER (CFS) (MIN.) (INCH/HR) (INCH/HR) (ACRES) NODE 1 9.22 11.44 3.020 0.20( 0.02) 0.10 3.4 1.01 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.12 = 1562.70 FEET. ** PEAK FLOW RATE TABLE ** STREAM Q Tc Intensity Fp(Fm) Ap Ae HEADWATER Page 8 P1-Q25.RES NUMBER (CFS) (MIN.) (INCH/HR) (INCH/HR) (ACRES) NODE 1 22.79 7.85 3.737 0.20( 0.02) 0.10 6.8 1.00 2 21.29 11.44 3.020 0.20( 0.02) 0.10 7.8 1.01 TOTAL AREA(ACRES) = 7.8 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 22.79 Tc(MIN.) = 7.848 EFFECTIVE AREA(ACRES) = 6.78 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 7.8 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.12 = 1562.70 FEET. ============================================================================ END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 7.8 TC(MIN.) = 7.85 EFFECTIVE AREA(ACRES) = 6.78 AREA-AVERAGED Fm(INCH/HR)= 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.100 PEAK FLOW RATE(CFS) = 22.79 ** PEAK FLOW RATE TABLE ** STREAM Q Tc Intensity Fp(Fm) Ap Ae HEADWATER NUMBER (CFS) (MIN.) (INCH/HR) (INCH/HR) (ACRES) NODE 1 22.79 7.85 3.737 0.20( 0.02) 0.10 6.8 1.00 2 21.29 11.44 3.020 0.20( 0.02) 0.10 7.8 1.01 ============================================================================ ============================================================================ END OF RATIONAL METHOD ANALYSIS Page 9 P2-Q25.RES ____________________________________________________________________________ **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 ORANGE COUNTY HYDROLOGY CRITERION) (c) Copyright 1983-2008 Advanced Engineering Software (aes) Ver. 15.0 Release Date: 04/01/2008 License ID 1204 Analysis prepared by: Adams-Streeter Civil Engineers, Inc. 15 Corporate Park Irvine, CA 92606 949-474-2330 ---------------------------------------------------------------------------- FILE NAME: DUNES-2.DAT TIME/DATE OF STUDY: 12:53 07/05/2018 ============================================================================ USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ============================================================================ --*TIME-OF-CONCENTRATION MODEL*-- USER SPECIFIED STORM EVENT(YEAR) = 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 6.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 0.95 *DATA BANK RAINFALL USED* *ANTECEDENT MOISTURE CONDITION (AMC) II ASSUMED FOR RATIONAL METHOD* *USER-DEFINED STREET-SECTIONS FOR COUPLED PIPEFLOW AND STREETFLOW MODEL* HALF- CROWN TO STREET-CROSSFALL: CURB GUTTER-GEOMETRIES: MANNING WIDTH CROSSFALL IN- / OUT-/PARK- HEIGHT WIDTH LIP HIKE FACTOR NO. (FT) (FT) SIDE / SIDE/ WAY (FT) (FT) (FT) (FT) (n) === ===== ========= ================= ====== ===== ====== ===== ======= 1 30.0 20.0 0.018/0.018/0.020 0.67 2.00 0.0313 0.167 0.0150 GLOBAL STREET FLOW-DEPTH CONSTRAINTS: 1. Relative Flow-Depth = 0.00 FEET as (Maximum Allowable Street Flow Depth) - (Top-of-Curb) 2. (Depth)*(Velocity) Constraint = 6.0 (FT*FT/S) *SIZE PIPE WITH A FLOW CAPACITY GREATER THAN OR EQUAL TO THE UPSTREAM TRIBUTARY PIPE.* *USER-SPECIFIED MINIMUM TOPOGRAPHIC SLOPE ADJUSTMENT NOT SELECTED **************************************************************************** FLOW PROCESS FROM NODE 2.01 TO NODE 2.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 139.50 ELEVATION DATA: UPSTREAM(FEET) = 15.70 DOWNSTREAM(FEET) = 14.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 5.291 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 4.672 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 0.16 0.20 0.100 75 5.29 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 0.67 TOTAL AREA(ACRES) = 0.16 PEAK FLOW RATE(CFS) = 0.67 Page 1 P2-Q25.RES **************************************************************************** FLOW PROCESS FROM NODE 2.02 TO NODE 2.03 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 92.50 MANNING'S N = 0.011 DEPTH OF FLOW IN 9.0 INCH PIPE IS 4.1 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 3.44 ESTIMATED PIPE DIAMETER(INCH) = 9.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 0.67 PIPE TRAVEL TIME(MIN.) = 0.45 Tc(MIN.) = 5.74 LONGEST FLOWPATH FROM NODE 2.01 TO NODE 2.03 = 232.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 2.03 TO NODE 2.03 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 5.74 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 4.462 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.27 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.27 SUBAREA RUNOFF(CFS) = 1.08 EFFECTIVE AREA(ACRES) = 0.43 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 0.4 PEAK FLOW RATE(CFS) = 1.72 ============================================================================ END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 0.4 TC(MIN.) = 5.74 EFFECTIVE AREA(ACRES) = 0.43 AREA-AVERAGED Fm(INCH/HR)= 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.100 PEAK FLOW RATE(CFS) = 1.72 ============================================================================ ============================================================================ END OF RATIONAL METHOD ANALYSIS Page 2 P3-Q25.RES ____________________________________________________________________________ **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 ORANGE COUNTY HYDROLOGY CRITERION) (c) Copyright 1983-2008 Advanced Engineering Software (aes) Ver. 15.0 Release Date: 04/01/2008 License ID 1204 Analysis prepared by: Adams-Streeter Civil Engineers, Inc. 15 Corporate Park Irvine, CA 92606 949-474-2330 ---------------------------------------------------------------------------- FILE NAME: DUNES-3.DAT TIME/DATE OF STUDY: 12:57 07/05/2018 ============================================================================ USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ============================================================================ --*TIME-OF-CONCENTRATION MODEL*-- USER SPECIFIED STORM EVENT(YEAR) = 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 6.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 0.95 *DATA BANK RAINFALL USED* *ANTECEDENT MOISTURE CONDITION (AMC) II ASSUMED FOR RATIONAL METHOD* *USER-DEFINED STREET-SECTIONS FOR COUPLED PIPEFLOW AND STREETFLOW MODEL* HALF- CROWN TO STREET-CROSSFALL: CURB GUTTER-GEOMETRIES: MANNING WIDTH CROSSFALL IN- / OUT-/PARK- HEIGHT WIDTH LIP HIKE FACTOR NO. (FT) (FT) SIDE / SIDE/ WAY (FT) (FT) (FT) (FT) (n) === ===== ========= ================= ====== ===== ====== ===== ======= 1 30.0 20.0 0.018/0.018/0.020 0.67 2.00 0.0313 0.167 0.0150 GLOBAL STREET FLOW-DEPTH CONSTRAINTS: 1. Relative Flow-Depth = 0.00 FEET as (Maximum Allowable Street Flow Depth) - (Top-of-Curb) 2. (Depth)*(Velocity) Constraint = 6.0 (FT*FT/S) *SIZE PIPE WITH A FLOW CAPACITY GREATER THAN OR EQUAL TO THE UPSTREAM TRIBUTARY PIPE.* *USER-SPECIFIED MINIMUM TOPOGRAPHIC SLOPE ADJUSTMENT NOT SELECTED **************************************************************************** FLOW PROCESS FROM NODE 3.01 TO NODE 3.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 106.80 ELEVATION DATA: UPSTREAM(FEET) = 13.20 DOWNSTREAM(FEET) = 12.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 5.000 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 4.824 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 0.12 0.20 0.100 75 5.00 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 0.52 TOTAL AREA(ACRES) = 0.12 PEAK FLOW RATE(CFS) = 0.52 Page 1 P3-Q25.RES **************************************************************************** FLOW PROCESS FROM NODE 3.02 TO NODE 3.03 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 65.20 MANNING'S N = 0.011 DEPTH OF FLOW IN 6.0 INCH PIPE IS 4.7 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 3.11 ESTIMATED PIPE DIAMETER(INCH) = 6.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 0.52 PIPE TRAVEL TIME(MIN.) = 0.35 Tc(MIN.) = 5.35 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.03 = 172.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.03 TO NODE 3.03 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 5.35 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 4.643 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.57 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.57 SUBAREA RUNOFF(CFS) = 2.37 EFFECTIVE AREA(ACRES) = 0.69 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 0.7 PEAK FLOW RATE(CFS) = 2.87 **************************************************************************** FLOW PROCESS FROM NODE 3.03 TO NODE 3.04 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 263.00 MANNING'S N = 0.011 DEPTH OF FLOW IN 12.0 INCH PIPE IS 8.4 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 4.89 ESTIMATED PIPE DIAMETER(INCH) = 12.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 2.87 PIPE TRAVEL TIME(MIN.) = 0.90 Tc(MIN.) = 6.25 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.04 = 435.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.04 TO NODE 3.04 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 6.25 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 4.253 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.74 0.20 0.100 75 COMMERCIAL D 0.35 0.20 0.100 75 COMMERCIAL D 0.28 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 Page 2 P3-Q25.RES SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.37 SUBAREA RUNOFF(CFS) = 5.22 EFFECTIVE AREA(ACRES) = 2.06 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 2.1 PEAK FLOW RATE(CFS) = 7.85 **************************************************************************** FLOW PROCESS FROM NODE 3.04 TO NODE 3.05 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 163.10 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 11.9 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.33 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 7.85 PIPE TRAVEL TIME(MIN.) = 0.43 Tc(MIN.) = 6.67 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.05 = 598.10 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.05 TO NODE 3.05 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 6.67 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 4.096 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.23 0.20 0.100 75 COMMERCIAL D 0.56 0.20 0.100 75 COMMERCIAL D 0.49 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.28 SUBAREA RUNOFF(CFS) = 4.70 EFFECTIVE AREA(ACRES) = 3.34 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 3.3 PEAK FLOW RATE(CFS) = 12.25 **************************************************************************** FLOW PROCESS FROM NODE 3.05 TO NODE 3.06 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 295.70 MANNING'S N = 0.011 DEPTH OF FLOW IN 21.0 INCH PIPE IS 14.2 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 7.06 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 12.25 PIPE TRAVEL TIME(MIN.) = 0.70 Tc(MIN.) = 7.37 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.06 = 893.80 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.06 TO NODE 3.06 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.37 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.872 Page 3 P3-Q25.RES SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.67 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.67 SUBAREA RUNOFF(CFS) = 2.32 EFFECTIVE AREA(ACRES) = 4.01 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 4.0 PEAK FLOW RATE(CFS) = 13.90 **************************************************************************** FLOW PROCESS FROM NODE 3.06 TO NODE 3.07 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 152.60 MANNING'S N = 0.011 DEPTH OF FLOW IN 21.0 INCH PIPE IS 15.7 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 7.19 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 13.90 PIPE TRAVEL TIME(MIN.) = 0.35 Tc(MIN.) = 7.73 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.07 = 1046.40 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.07 TO NODE 3.07 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.73 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.770 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 1.08 0.20 0.100 75 COMMERCIAL D 0.11 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.19 SUBAREA RUNOFF(CFS) = 4.02 EFFECTIVE AREA(ACRES) = 5.20 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 5.2 PEAK FLOW RATE(CFS) = 17.55 **************************************************************************** FLOW PROCESS FROM NODE 3.07 TO NODE 3.08 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 18.00 MANNING'S N = 0.011 DEPTH OF FLOW IN 24.0 INCH PIPE IS 16.3 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 7.72 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 17.55 PIPE TRAVEL TIME(MIN.) = 0.04 Tc(MIN.) = 7.77 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.08 = 1064.40 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.08 TO NODE 3.08 IS CODE = 81 ---------------------------------------------------------------------------- Page 4 P3-Q25.RES >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.77 * 25 YEAR RAINFALL INTENSITY(INCH/HR) = 3.760 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.20 0.20 0.100 75 COMMERCIAL D 0.11 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.31 SUBAREA RUNOFF(CFS) = 1.04 EFFECTIVE AREA(ACRES) = 5.51 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 5.5 PEAK FLOW RATE(CFS) = 18.55 **************************************************************************** FLOW PROCESS FROM NODE 3.08 TO NODE 3.09 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 48.00 MANNING'S N = 0.011 DEPTH OF FLOW IN 24.0 INCH PIPE IS 17.0 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 7.79 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 18.55 PIPE TRAVEL TIME(MIN.) = 0.10 Tc(MIN.) = 7.87 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.09 = 1112.40 FEET. ============================================================================ END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 5.5 TC(MIN.) = 7.87 EFFECTIVE AREA(ACRES) = 5.51 AREA-AVERAGED Fm(INCH/HR)= 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.100 PEAK FLOW RATE(CFS) = 18.55 ============================================================================ ============================================================================ END OF RATIONAL METHOD ANALYSIS Page 5 Proposed Rational Method Q100 Hydrology P1-Q100.RES ____________________________________________________________________________ **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 ORANGE COUNTY HYDROLOGY CRITERION) (c) Copyright 1983-2008 Advanced Engineering Software (aes) Ver. 15.0 Release Date: 04/01/2008 License ID 1204 Analysis prepared by: Adams-Streeter Civil Engineers, Inc. 15 Corporate Park Irvine, CA 92606 949-474-2330 ---------------------------------------------------------------------------- FILE NAME: DUNES-1.DAT TIME/DATE OF STUDY: 12:50 07/05/2018 ============================================================================ USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ============================================================================ --*TIME-OF-CONCENTRATION MODEL*-- USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 6.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 0.95 *DATA BANK RAINFALL USED* *ANTECEDENT MOISTURE CONDITION (AMC) II ASSUMED FOR RATIONAL METHOD* *USER-DEFINED STREET-SECTIONS FOR COUPLED PIPEFLOW AND STREETFLOW MODEL* HALF- CROWN TO STREET-CROSSFALL: CURB GUTTER-GEOMETRIES: MANNING WIDTH CROSSFALL IN- / OUT-/PARK- HEIGHT WIDTH LIP HIKE FACTOR NO. (FT) (FT) SIDE / SIDE/ WAY (FT) (FT) (FT) (FT) (n) === ===== ========= ================= ====== ===== ====== ===== ======= 1 30.0 20.0 0.018/0.018/0.020 0.67 2.00 0.0313 0.167 0.0150 GLOBAL STREET FLOW-DEPTH CONSTRAINTS: 1. Relative Flow-Depth = 0.00 FEET as (Maximum Allowable Street Flow Depth) - (Top-of-Curb) 2. (Depth)*(Velocity) Constraint = 6.0 (FT*FT/S) *SIZE PIPE WITH A FLOW CAPACITY GREATER THAN OR EQUAL TO THE UPSTREAM TRIBUTARY PIPE.* *USER-SPECIFIED MINIMUM TOPOGRAPHIC SLOPE ADJUSTMENT NOT SELECTED **************************************************************************** FLOW PROCESS FROM NODE 1.01 TO NODE 1.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 433.00 ELEVATION DATA: UPSTREAM(FEET) = 19.00 DOWNSTREAM(FEET) = 13.30 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 8.196 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 4.661 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 1.18 0.20 0.100 75 8.20 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 4.93 TOTAL AREA(ACRES) = 1.18 PEAK FLOW RATE(CFS) = 4.93 Page 1 P1-Q100.RES **************************************************************************** FLOW PROCESS FROM NODE 1.02 TO NODE 1.03 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 97.40 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 10.1 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.62 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 4.93 PIPE TRAVEL TIME(MIN.) = 0.29 Tc(MIN.) = 8.48 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.03 = 530.40 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.03 TO NODE 1.03 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 8.48 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 4.570 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.16 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.16 SUBAREA RUNOFF(CFS) = 0.66 EFFECTIVE AREA(ACRES) = 1.34 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.3 PEAK FLOW RATE(CFS) = 5.49 **************************************************************************** FLOW PROCESS FROM NODE 1.03 TO NODE 1.04 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 93.40 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 10.9 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.73 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 5.49 PIPE TRAVEL TIME(MIN.) = 0.27 Tc(MIN.) = 8.76 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.04 = 623.80 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.04 TO NODE 1.04 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 8.76 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 4.488 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.21 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.21 SUBAREA RUNOFF(CFS) = 0.84 Page 2 P1-Q100.RES EFFECTIVE AREA(ACRES) = 1.55 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.5 PEAK FLOW RATE(CFS) = 6.23 **************************************************************************** FLOW PROCESS FROM NODE 1.04 TO NODE 1.05 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 143.20 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 10.2 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.02 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 6.23 PIPE TRAVEL TIME(MIN.) = 0.40 Tc(MIN.) = 9.15 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.05 = 767.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.05 TO NODE 1.06 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 73.60 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 10.2 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.02 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 6.23 PIPE TRAVEL TIME(MIN.) = 0.20 Tc(MIN.) = 9.36 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.06 = 840.60 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.06 TO NODE 1.06 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 9.36 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 4.321 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.10 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.10 SUBAREA RUNOFF(CFS) = 0.39 EFFECTIVE AREA(ACRES) = 1.65 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.6 PEAK FLOW RATE(CFS) = 6.39 **************************************************************************** FLOW PROCESS FROM NODE 1.06 TO NODE 1.07 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 72.10 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 10.4 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.06 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 Page 3 P1-Q100.RES PIPE-FLOW(CFS) = 6.39 PIPE TRAVEL TIME(MIN.) = 0.20 Tc(MIN.) = 9.55 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.07 = 912.70 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.07 TO NODE 1.07 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 9.55 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 4.269 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.14 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.14 SUBAREA RUNOFF(CFS) = 0.54 EFFECTIVE AREA(ACRES) = 1.79 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.8 PEAK FLOW RATE(CFS) = 6.85 **************************************************************************** FLOW PROCESS FROM NODE 1.07 TO NODE 1.08 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 112.50 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 10.9 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.15 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 6.85 PIPE TRAVEL TIME(MIN.) = 0.30 Tc(MIN.) = 9.86 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.08 = 1025.20 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.08 TO NODE 1.08 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 9.86 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 4.193 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.09 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.09 SUBAREA RUNOFF(CFS) = 0.34 EFFECTIVE AREA(ACRES) = 1.88 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 1.9 PEAK FLOW RATE(CFS) = 7.06 **************************************************************************** FLOW PROCESS FROM NODE 1.08 TO NODE 1.09 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 115.30 MANNING'S N = 0.011 Page 4 P1-Q100.RES DEPTH OF FLOW IN 18.0 INCH PIPE IS 11.1 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.19 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 7.06 PIPE TRAVEL TIME(MIN.) = 0.31 Tc(MIN.) = 10.17 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.09 = 1140.50 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.09 TO NODE 1.09 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 10.17 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 4.119 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.35 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.35 SUBAREA RUNOFF(CFS) = 1.29 EFFECTIVE AREA(ACRES) = 2.23 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 2.2 PEAK FLOW RATE(CFS) = 8.23 **************************************************************************** FLOW PROCESS FROM NODE 1.09 TO NODE 1.10 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 156.50 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 12.3 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.39 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 8.23 PIPE TRAVEL TIME(MIN.) = 0.41 Tc(MIN.) = 10.58 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.10 = 1297.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.10 TO NODE 1.10 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 10.58 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 4.027 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.34 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.34 SUBAREA RUNOFF(CFS) = 1.23 EFFECTIVE AREA(ACRES) = 2.57 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 2.6 PEAK FLOW RATE(CFS) = 9.27 **************************************************************************** FLOW PROCESS FROM NODE 1.10 TO NODE 1.11 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< Page 5 P1-Q100.RES ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 165.40 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 13.5 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.50 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 9.27 PIPE TRAVEL TIME(MIN.) = 0.42 Tc(MIN.) = 11.00 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.11 = 1462.40 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.11 TO NODE 1.11 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 11.00 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 3.938 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.80 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.80 SUBAREA RUNOFF(CFS) = 2.82 EFFECTIVE AREA(ACRES) = 3.37 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 3.4 PEAK FLOW RATE(CFS) = 11.88 **************************************************************************** FLOW PROCESS FROM NODE 1.11 TO NODE 1.12 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 100.30 MANNING'S N = 0.011 DEPTH OF FLOW IN 21.0 INCH PIPE IS 13.9 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 7.02 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 11.88 PIPE TRAVEL TIME(MIN.) = 0.24 Tc(MIN.) = 11.24 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.12 = 1562.70 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.12 TO NODE 1.12 IS CODE = 10 ---------------------------------------------------------------------------- >>>>>MAIN-STREAM MEMORY COPIED ONTO MEMORY BANK # 1 <<<<< ============================================================================ **************************************************************************** FLOW PROCESS FROM NODE 1.00 TO NODE 1.13 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 312.20 ELEVATION DATA: UPSTREAM(FEET) = 19.00 DOWNSTREAM(FEET) = 13.60 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 6.809 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 5.184 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc Page 6 P1-Q100.RES LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 1.43 0.20 0.100 75 6.81 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 6.65 TOTAL AREA(ACRES) = 1.43 PEAK FLOW RATE(CFS) = 6.65 **************************************************************************** FLOW PROCESS FROM NODE 1.13 TO NODE 1.14 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 65.30 MANNING'S N = 0.011 DEPTH OF FLOW IN 18.0 INCH PIPE IS 10.6 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.11 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 6.65 PIPE TRAVEL TIME(MIN.) = 0.18 Tc(MIN.) = 6.99 LONGEST FLOWPATH FROM NODE 1.00 TO NODE 1.14 = 377.50 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.14 TO NODE 1.14 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 6.99 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 5.108 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.80 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.80 SUBAREA RUNOFF(CFS) = 3.66 EFFECTIVE AREA(ACRES) = 2.23 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 2.2 PEAK FLOW RATE(CFS) = 10.21 **************************************************************************** FLOW PROCESS FROM NODE 1.14 TO NODE 1.15 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 143.60 MANNING'S N = 0.011 DEPTH OF FLOW IN 21.0 INCH PIPE IS 12.6 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.80 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 10.21 PIPE TRAVEL TIME(MIN.) = 0.35 Tc(MIN.) = 7.34 LONGEST FLOWPATH FROM NODE 1.00 TO NODE 1.15 = 521.10 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.15 TO NODE 1.15 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.34 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 4.966 SUBAREA LOSS RATE DATA(AMC II): Page 7 P1-Q100.RES DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 1.01 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.01 SUBAREA RUNOFF(CFS) = 4.50 EFFECTIVE AREA(ACRES) = 3.24 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 3.2 PEAK FLOW RATE(CFS) = 14.42 **************************************************************************** FLOW PROCESS FROM NODE 1.15 TO NODE 1.16 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 195.70 MANNING'S N = 0.011 DEPTH OF FLOW IN 21.0 INCH PIPE IS 16.3 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 7.22 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 14.42 PIPE TRAVEL TIME(MIN.) = 0.45 Tc(MIN.) = 7.79 LONGEST FLOWPATH FROM NODE 1.00 TO NODE 1.16 = 716.80 FEET. **************************************************************************** FLOW PROCESS FROM NODE 1.16 TO NODE 1.16 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.79 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 4.799 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 1.23 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.23 SUBAREA RUNOFF(CFS) = 5.29 EFFECTIVE AREA(ACRES) = 4.47 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 4.5 PEAK FLOW RATE(CFS) = 19.23 **************************************************************************** FLOW PROCESS FROM NODE 1.16 TO NODE 1.12 IS CODE = 11 ---------------------------------------------------------------------------- >>>>>CONFLUENCE MEMORY BANK # 1 WITH THE MAIN-STREAM MEMORY<<<<< ============================================================================ ** MAIN STREAM CONFLUENCE DATA ** STREAM Q Tc Intensity Fp(Fm) Ap Ae HEADWATER NUMBER (CFS) (MIN.) (INCH/HR) (INCH/HR) (ACRES) NODE 1 19.23 7.79 4.799 0.20( 0.02) 0.10 4.5 1.00 LONGEST FLOWPATH FROM NODE 1.00 TO NODE 1.12 = 716.80 FEET. ** MEMORY BANK # 1 CONFLUENCE DATA ** STREAM Q Tc Intensity Fp(Fm) Ap Ae HEADWATER NUMBER (CFS) (MIN.) (INCH/HR) (INCH/HR) (ACRES) NODE 1 11.88 11.24 3.890 0.20( 0.02) 0.10 3.4 1.01 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.12 = 1562.70 FEET. ** PEAK FLOW RATE TABLE ** STREAM Q Tc Intensity Fp(Fm) Ap Ae HEADWATER Page 8 P1-Q100.RES NUMBER (CFS) (MIN.) (INCH/HR) (INCH/HR) (ACRES) NODE 1 29.40 7.79 4.799 0.20( 0.02) 0.10 6.8 1.00 2 27.45 11.24 3.890 0.20( 0.02) 0.10 7.8 1.01 TOTAL AREA(ACRES) = 7.8 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 29.40 Tc(MIN.) = 7.790 EFFECTIVE AREA(ACRES) = 6.81 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 7.8 LONGEST FLOWPATH FROM NODE 1.01 TO NODE 1.12 = 1562.70 FEET. ============================================================================ END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 7.8 TC(MIN.) = 7.79 EFFECTIVE AREA(ACRES) = 6.81 AREA-AVERAGED Fm(INCH/HR)= 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.100 PEAK FLOW RATE(CFS) = 29.40 ** PEAK FLOW RATE TABLE ** STREAM Q Tc Intensity Fp(Fm) Ap Ae HEADWATER NUMBER (CFS) (MIN.) (INCH/HR) (INCH/HR) (ACRES) NODE 1 29.40 7.79 4.799 0.20( 0.02) 0.10 6.8 1.00 2 27.45 11.24 3.890 0.20( 0.02) 0.10 7.8 1.01 ============================================================================ ============================================================================ END OF RATIONAL METHOD ANALYSIS Page 9 P2-Q100.RES ____________________________________________________________________________ **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 ORANGE COUNTY HYDROLOGY CRITERION) (c) Copyright 1983-2008 Advanced Engineering Software (aes) Ver. 15.0 Release Date: 04/01/2008 License ID 1204 Analysis prepared by: Adams-Streeter Civil Engineers, Inc. 15 Corporate Park Irvine, CA 92606 949-474-2330 ---------------------------------------------------------------------------- FILE NAME: DUNES-2.DAT TIME/DATE OF STUDY: 12:52 07/05/2018 ============================================================================ USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ============================================================================ --*TIME-OF-CONCENTRATION MODEL*-- USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 6.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 0.95 *DATA BANK RAINFALL USED* *ANTECEDENT MOISTURE CONDITION (AMC) II ASSUMED FOR RATIONAL METHOD* *USER-DEFINED STREET-SECTIONS FOR COUPLED PIPEFLOW AND STREETFLOW MODEL* HALF- CROWN TO STREET-CROSSFALL: CURB GUTTER-GEOMETRIES: MANNING WIDTH CROSSFALL IN- / OUT-/PARK- HEIGHT WIDTH LIP HIKE FACTOR NO. (FT) (FT) SIDE / SIDE/ WAY (FT) (FT) (FT) (FT) (n) === ===== ========= ================= ====== ===== ====== ===== ======= 1 30.0 20.0 0.018/0.018/0.020 0.67 2.00 0.0313 0.167 0.0150 GLOBAL STREET FLOW-DEPTH CONSTRAINTS: 1. Relative Flow-Depth = 0.00 FEET as (Maximum Allowable Street Flow Depth) - (Top-of-Curb) 2. (Depth)*(Velocity) Constraint = 6.0 (FT*FT/S) *SIZE PIPE WITH A FLOW CAPACITY GREATER THAN OR EQUAL TO THE UPSTREAM TRIBUTARY PIPE.* *USER-SPECIFIED MINIMUM TOPOGRAPHIC SLOPE ADJUSTMENT NOT SELECTED **************************************************************************** FLOW PROCESS FROM NODE 2.01 TO NODE 2.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 139.50 ELEVATION DATA: UPSTREAM(FEET) = 15.70 DOWNSTREAM(FEET) = 14.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 5.291 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 5.990 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 0.16 0.20 0.100 75 5.29 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 0.86 TOTAL AREA(ACRES) = 0.16 PEAK FLOW RATE(CFS) = 0.86 Page 1 P2-Q100.RES **************************************************************************** FLOW PROCESS FROM NODE 2.02 TO NODE 2.03 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 92.50 MANNING'S N = 0.011 DEPTH OF FLOW IN 9.0 INCH PIPE IS 4.7 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 3.67 ESTIMATED PIPE DIAMETER(INCH) = 9.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 0.86 PIPE TRAVEL TIME(MIN.) = 0.42 Tc(MIN.) = 5.71 LONGEST FLOWPATH FROM NODE 2.01 TO NODE 2.03 = 232.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 2.03 TO NODE 2.03 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 5.71 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 5.733 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.27 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.27 SUBAREA RUNOFF(CFS) = 1.39 EFFECTIVE AREA(ACRES) = 0.43 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 0.4 PEAK FLOW RATE(CFS) = 2.21 ============================================================================ END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 0.4 TC(MIN.) = 5.71 EFFECTIVE AREA(ACRES) = 0.43 AREA-AVERAGED Fm(INCH/HR)= 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.100 PEAK FLOW RATE(CFS) = 2.21 ============================================================================ ============================================================================ END OF RATIONAL METHOD ANALYSIS Page 2 P3-Q100.RES ____________________________________________________________________________ **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 ORANGE COUNTY HYDROLOGY CRITERION) (c) Copyright 1983-2008 Advanced Engineering Software (aes) Ver. 15.0 Release Date: 04/01/2008 License ID 1204 Analysis prepared by: Adams-Streeter Civil Engineers, Inc. 15 Corporate Park Irvine, CA 92606 949-474-2330 ---------------------------------------------------------------------------- FILE NAME: DUNES-3.DAT TIME/DATE OF STUDY: 12:56 07/05/2018 ============================================================================ USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ============================================================================ --*TIME-OF-CONCENTRATION MODEL*-- USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 6.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 0.95 *DATA BANK RAINFALL USED* *ANTECEDENT MOISTURE CONDITION (AMC) II ASSUMED FOR RATIONAL METHOD* *USER-DEFINED STREET-SECTIONS FOR COUPLED PIPEFLOW AND STREETFLOW MODEL* HALF- CROWN TO STREET-CROSSFALL: CURB GUTTER-GEOMETRIES: MANNING WIDTH CROSSFALL IN- / OUT-/PARK- HEIGHT WIDTH LIP HIKE FACTOR NO. (FT) (FT) SIDE / SIDE/ WAY (FT) (FT) (FT) (FT) (n) === ===== ========= ================= ====== ===== ====== ===== ======= 1 30.0 20.0 0.018/0.018/0.020 0.67 2.00 0.0313 0.167 0.0150 GLOBAL STREET FLOW-DEPTH CONSTRAINTS: 1. Relative Flow-Depth = 0.00 FEET as (Maximum Allowable Street Flow Depth) - (Top-of-Curb) 2. (Depth)*(Velocity) Constraint = 6.0 (FT*FT/S) *SIZE PIPE WITH A FLOW CAPACITY GREATER THAN OR EQUAL TO THE UPSTREAM TRIBUTARY PIPE.* *USER-SPECIFIED MINIMUM TOPOGRAPHIC SLOPE ADJUSTMENT NOT SELECTED **************************************************************************** FLOW PROCESS FROM NODE 3.01 TO NODE 3.02 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< >>USE TIME-OF-CONCENTRATION NOMOGRAPH FOR INITIAL SUBAREA<< ============================================================================ INITIAL SUBAREA FLOW-LENGTH(FEET) = 106.80 ELEVATION DATA: UPSTREAM(FEET) = 13.20 DOWNSTREAM(FEET) = 12.00 Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 5.000 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 6.187 SUBAREA Tc AND LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) COMMERCIAL D 0.12 0.20 0.100 75 5.00 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA RUNOFF(CFS) = 0.67 TOTAL AREA(ACRES) = 0.12 PEAK FLOW RATE(CFS) = 0.67 Page 1 P3-Q100.RES **************************************************************************** FLOW PROCESS FROM NODE 3.02 TO NODE 3.03 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 65.20 MANNING'S N = 0.011 DEPTH OF FLOW IN 9.0 INCH PIPE IS 4.0 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 3.47 ESTIMATED PIPE DIAMETER(INCH) = 9.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 0.67 PIPE TRAVEL TIME(MIN.) = 0.31 Tc(MIN.) = 5.31 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.03 = 172.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.03 TO NODE 3.03 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 5.31 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 5.975 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.57 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.57 SUBAREA RUNOFF(CFS) = 3.06 EFFECTIVE AREA(ACRES) = 0.69 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 0.7 PEAK FLOW RATE(CFS) = 3.70 **************************************************************************** FLOW PROCESS FROM NODE 3.03 TO NODE 3.04 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 263.00 MANNING'S N = 0.011 DEPTH OF FLOW IN 15.0 INCH PIPE IS 8.3 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 5.29 ESTIMATED PIPE DIAMETER(INCH) = 15.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 3.70 PIPE TRAVEL TIME(MIN.) = 0.83 Tc(MIN.) = 6.14 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.04 = 435.00 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.04 TO NODE 3.04 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 6.14 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 5.499 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.74 0.20 0.100 75 COMMERCIAL D 0.35 0.20 0.100 75 COMMERCIAL D 0.28 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 Page 2 P3-Q100.RES SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.37 SUBAREA RUNOFF(CFS) = 6.76 EFFECTIVE AREA(ACRES) = 2.06 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 2.1 PEAK FLOW RATE(CFS) = 10.16 **************************************************************************** FLOW PROCESS FROM NODE 3.04 TO NODE 3.05 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 163.10 MANNING'S N = 0.011 DEPTH OF FLOW IN 21.0 INCH PIPE IS 12.5 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 6.79 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 10.16 PIPE TRAVEL TIME(MIN.) = 0.40 Tc(MIN.) = 6.54 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.05 = 598.10 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.05 TO NODE 3.05 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 6.54 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 5.304 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.23 0.20 0.100 75 COMMERCIAL D 0.56 0.20 0.100 75 COMMERCIAL D 0.49 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.28 SUBAREA RUNOFF(CFS) = 6.09 EFFECTIVE AREA(ACRES) = 3.34 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 3.3 PEAK FLOW RATE(CFS) = 15.88 **************************************************************************** FLOW PROCESS FROM NODE 3.05 TO NODE 3.06 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 295.70 MANNING'S N = 0.011 DEPTH OF FLOW IN 24.0 INCH PIPE IS 15.2 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 7.57 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 15.88 PIPE TRAVEL TIME(MIN.) = 0.65 Tc(MIN.) = 7.19 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.06 = 893.80 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.06 TO NODE 3.06 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.19 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 5.023 Page 3 P3-Q100.RES SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.67 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.67 SUBAREA RUNOFF(CFS) = 3.02 EFFECTIVE AREA(ACRES) = 4.01 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 4.0 PEAK FLOW RATE(CFS) = 18.06 **************************************************************************** FLOW PROCESS FROM NODE 3.06 TO NODE 3.07 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 152.60 MANNING'S N = 0.011 DEPTH OF FLOW IN 24.0 INCH PIPE IS 16.7 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 7.76 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 18.06 PIPE TRAVEL TIME(MIN.) = 0.33 Tc(MIN.) = 7.52 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.07 = 1046.40 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.07 TO NODE 3.07 IS CODE = 81 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.52 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 4.897 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 1.08 0.20 0.100 75 COMMERCIAL D 0.11 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 1.19 SUBAREA RUNOFF(CFS) = 5.22 EFFECTIVE AREA(ACRES) = 5.20 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 5.2 PEAK FLOW RATE(CFS) = 22.82 **************************************************************************** FLOW PROCESS FROM NODE 3.07 TO NODE 3.08 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 18.00 MANNING'S N = 0.011 DEPTH OF FLOW IN 27.0 INCH PIPE IS 17.7 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 8.27 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 22.82 PIPE TRAVEL TIME(MIN.) = 0.04 Tc(MIN.) = 7.56 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.08 = 1064.40 FEET. **************************************************************************** FLOW PROCESS FROM NODE 3.08 TO NODE 3.08 IS CODE = 81 ---------------------------------------------------------------------------- Page 4 P3-Q100.RES >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ MAINLINE Tc(MIN.) = 7.56 * 100 YEAR RAINFALL INTENSITY(INCH/HR) = 4.883 SUBAREA LOSS RATE DATA(AMC II): DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN COMMERCIAL D 0.20 0.20 0.100 75 COMMERCIAL D 0.11 0.20 0.100 75 SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.20 SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 SUBAREA AREA(ACRES) = 0.31 SUBAREA RUNOFF(CFS) = 1.36 EFFECTIVE AREA(ACRES) = 5.51 AREA-AVERAGED Fm(INCH/HR) = 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.10 TOTAL AREA(ACRES) = 5.5 PEAK FLOW RATE(CFS) = 24.12 **************************************************************************** FLOW PROCESS FROM NODE 3.08 TO NODE 3.09 IS CODE = 31 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE-FLOW TRAVEL TIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ REPRESENTATIVE SLOPE = 0.0070 FLOW LENGTH(FEET) = 48.00 MANNING'S N = 0.011 DEPTH OF FLOW IN 27.0 INCH PIPE IS 18.4 INCHES PIPE-FLOW VELOCITY(FEET/SEC.) = 8.36 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPE-FLOW(CFS) = 24.12 PIPE TRAVEL TIME(MIN.) = 0.10 Tc(MIN.) = 7.65 LONGEST FLOWPATH FROM NODE 3.01 TO NODE 3.09 = 1112.40 FEET. ============================================================================ END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 5.5 TC(MIN.) = 7.65 EFFECTIVE AREA(ACRES) = 5.51 AREA-AVERAGED Fm(INCH/HR)= 0.02 AREA-AVERAGED Fp(INCH/HR) = 0.20 AREA-AVERAGED Ap = 0.100 PEAK FLOW RATE(CFS) = 24.12 ============================================================================ ============================================================================ END OF RATIONAL METHOD ANALYSIS Page 5