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HomeMy WebLinkAbout09 - Buck Gully Wetlands Maintenance Road RepairsCITY OF NEWPORT BEACH CITY COUNCIL STAFF REPORT Agenda Item No. 9 July 24, 2007 TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL FROM: Public Works Department Stephen Luy 949 -644 -3330 or sluy @city.newport- beach.ca.us SUBJECT: BUCK GULLY WETLANDS MAINTENANCE ROAD REPAIRS AT 5T" STREET - AWARD OF CONTRACT NO. 3778 RECOMMENDATIONS: 1. Approve the drawings and specifications. 2. Award Contract No.3778 to McKenna General Engineering Inc., for the Total Bid Price of $344,823.60, and authorize the Mayor and the City Clerk to execute the contract. 3. Establish an amount of $34,500.00 (10 %) to cover the cost of unforeseen work. 4. Approve a Budget Amendment in the amount of $136,323.60 ($68,000 from Account No. 7501- C6002001 [Ocean Birch Drive Water Main] to 7501- C5100659 [Buck Gully Wetlands Maintenance Road Repairs] and $68,323.60 from Account No. 010 -3605 [Unappropriated General Fund]) to Account No. 7014- C5100659. DISCUSSION: At 11:00 a.m. on July 12, 2007 the City Clerk opened and read the following bids for this project: Corrected Bid Amount is $347,136.40 Corrected Bid Amount is $400,838.00 BIDDER AMOUNT Low McKenna General Engineering, Inc. $344,823.60 2 JMA Construction Co. "$347,135.00 3 GCI Construction Co. $397,867.00 4 Peterson -Chase General Engineering, Inc. $398,970.00 5 NCCI, Inc. ""$396,388.00 6 Bonsall Construction $404,838.00 7 S.P. Pazargad $413,827.00 Corrected Bid Amount is $347,136.40 Corrected Bid Amount is $400,838.00 Buck Gully Wetlands and Maintenance Road Repairs at 5th Street —Award of Contract No. 3778 July 24, 2007 Page: 2 While the low total bid amount is 38% percent above the Engineer's Estimate of $250,000, all seven bids received are within the same range indicating that the proposed bid is reasonable. The low bidder, McKenna General Engineering Inc., possesses a California State Contractors License Classification "A" as required by the project specifications. A check of the Contractor's references indicates it has satisfactorily completed projects of similar difficulty for other municipalities. This project accomplishes two purposes. • The maintenance road leading into Buck Gully from a Street and Poppy Street accesses a water main blow off in the canyon. A concrete structure (with two culverts) provides a crossing over the creek. This project will replace the Concrete road cap and headwalls which have been compromised making the crossing hazardous for service vehicles. Additionally, stream erosion upstream and downstream of the road crossing, which is undercutting the road crossing headwalls as well as the channel slopes, will be repaired and stabilized. • Under a Proposition 13 grant (2002) from the State Water Resources Control Board, one of the grant tasks is the creation of a wetlands area. Under this proposed project, invasive plants will be removed and native wetland plantings will be installed. The work necessary for the completion of this contract consists of two Project Phases as follows: Project Phase 1 work includes general site preparation and construction work including mobilization, erosion control, BMP (Best Management Practice) and SWPPP (Storm Water Pollution Prevention Plan) measures, clearing and grubbing, demolition of a portion of the existing concrete "Arizona" creek crossing and existing riprap section, dewatering and surface water control, constructing headwalls and new paving cap at the existing "Arizona" crossing, Constructing various rock - filled gabion grade control structures within the creek, constructing various rock and soil - filled gabion creek bank erosion protection structures, placing unclassified fill, modifying existing storm drain pipes and outfall structure, installing storm drain inserts, controlling sediment, installing erosion control fabric slope protection, providing dust control and all other work as required to bring this reach of Buck Gully into readiness to accept storm water flows. Project Phase 2 work includes installation of a temporary irrigation system, planting of native California wetland and upland plant species, including trees, shrubs, . cuttings, hydro- seeding and providing other landscaping and revegetation tasks as required to complete the project. Upon successful completion of Phase 2 a 120 -day plant establishment maintenance period will commence. After the 120 -day maintenance period, there is also an obligatory 5 -year long -term maintenance and monitoring period, which will be handled by the City as a separate contract, not included in this current project. Buck Gully Wetlands and Maintenance Road Repairs at 5th Street — Award of Contract No. 3776 July 24, 2007 Page: 3 Pursuant to the Contract Specifications, the Contractor will have 45 consecutive working days to complete Phase 1, site preparation and construction work. The contractor will have an additional 30 consecutive working days to complete Phase 2 of the work, including installing the irrigation system, hydro- seeding and landscaping. A total of 75 working days will be allowed for the Contract. As the work will occur in the creek bed, it is prudent to commence construction as soon as possible to reduce the chance of construction occurring during rain events. However, per the California Department of Fish and Game, construction may only commence after August 15 so as not to interfere with the gnat catcher breeding season. Environmental Review: The project was determined to be exempt from the California Environmental Quality Act (CEQA) pursuant to Section 15301 Existing Facilities for Maintenance Road and Section 15333, Class 33 of the CEQA Implementing Guidelines at the time the project was authorized by the City Council. This exemption covers the restoration of small habitat and allows for the stabilization of stream banks with native vegetation and bio- engineering techniques to eliminate erosion and sedimentation. Public Notice: The Notice Inviting Bids was advertised in the City's official publication and in construction industry publications. Geotechnical. Material Testing and Printinq Costs: In addition to the contract costs, $5,000 in material testing is estimated for this project and $2,000 for printing and other incidentals. Funding Availability: Upon approval of the recommended Budget Amendment, sufficient funds will be available in the following accounts for the project: Account Description Account Number General Fund 7014- C5100659 Contributions 7255- C5100659 Water Enterprise 7501- C5100659 Total: Amount $ 115,823.60 67,500.00 203,000.00 $ $386,323.60 Buds Gully Wetlands and Maintenance Road Repairs at 5th Street— Award of Contract No. 3778 July 24, 2007 Page: 4 Proposed uses are as follows: Vendor McKenna General Engr., Inc. McKenna General Engr., Inc. On —call Consultant Various Prepared by: Stephen Luy Associate Civil Engineer Attachments: Project Location Map Bid Summary Budget Amendment Purpose Construction Contract Construction Contingency Materials Testing Printing and Incidentals Total: Submitted by: Amount $ 344,823.60 34,500.00 5,000.00 2,000.00 $ 386,323.60 Badum s Director . .......... ......... --- ... .... .... ... ... & Vi On, . 4 M.L P-k- . . . . . . . . . . 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BA- 08BA -004 BUDGET AMENDMENT 2007 -08 AMOUNT: $136,323.60 EFFECT ON BUDGETARY FUND BALANCE: Increase Revenue Estimates Increase in Budgetary Fund Balance FX Increase Expenditure Appropriations AND X Decrease in Budgetary Fund Balance Transfer Budget Appropriations No effect on Budgetary Fund Balance SOURCE: X from existing budget appropriations from additional estimated revenues X from unappropriated fund balance EXPLANATION: This budget amendment is requested to provide for the following: To transfer and increase expenditure appropriations for the Buck Gully Wetlands Maintenance Road Repair project. ACCOUNTING ENTRY: BUDGETARY FUND BALANCE Fund Account 010 3605 REVENUE ESTIMATES (3601) Fund /Division Aocoun t EXPENDITURE APPROPRIATIONS (3603) Description General Fund - Fund Balance Description Signed: Signed: 1-, Signed: Manager Amount Debit Credit $68,323.60 " $68,000.00 $68,323.60 $68,000.00 7 -/& -07 Date City Council Approval: City Clerk Date Y Description Division Number 7014 General Fund - Miscellaneous & Studies Account Number C5100659 Buck Gully Restoration Division Number 7501 Water Fund - Capital Project Account Number C6002001 . Ocean Birch Drive Water Main Division Number 7501 .Water Fund - Capital Project Account Number C5100659 Buck Gully Restoration Division Number Account Number Division Number Account Number Signed: Signed: 1-, Signed: Manager Amount Debit Credit $68,323.60 " $68,000.00 $68,323.60 $68,000.00 7 -/& -07 Date City Council Approval: City Clerk Date Y