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HomeMy WebLinkAbout08 - BA-018 - Dover Drive Water Main Break RepairNovember 28, 2000 CITY COUNCIL AGENDA ITEM NO. 8 TO: Mayor and Members of the City Council FROM: Public Works Department SUBJECT: DOVER DRIVE WATER MAIN BREAK REPAIR— BUDGET AMENDMENT RECOMMENDATIONS: 1. Approve the emergency expenditure of $155,000 to repair the 30 -inch water main break and pavement replacement in Dover Drive between Cliff Drive and West Coast Highway. 2. Authorize a budget amendment appropriating $155,000 from the Water System Reserve Fund Account Balance to Water Fund Account 5500 -8160 (Maintenance and Repair Materials) for the Dover Drive water main and pavement repair. DISCUSSION: All of the major charges for the emergency repair of the 30 -inch water line and pavement in Dover Drive have been submitted. The charges total $155,000. Approximately $70,000 was required to repair the water line and $85,000 to repair the pavement in Dover Drive. City Council Policy F -2 — Reserves /Designation of Fund Balance provides for the Water System Reserve to be used for emergency repairs to the water system. The recommended budget amendment will appropriate funds from this reserve account to the Water Fund Account 5500 -8160 (Maintenance and Repair Materials). Approximately $3.2 million will remain in the Water System Reserve Account after the transfer. On Wednesday, October 25, 2000, at approximately 4:45 p.m., the City began receiving calls from residents and businesses regarding low pressure from areas in Corona del Mar and Newport Heights. A call was received from a resident informing Utilities that there was water gushing from the pavement on Dover Drive between Cliff Drive and West Coast Highway. Crews arrived at Dover Drive at 5:00 p.m., and discovered a large flood of water from Dover Drive onto West Coast Highway. The Police Department provided traffic control while Utilities and General Services crews set -up traffic delineation to close off both sides of Dover Drive. Traffic from Dover Drive was diverted through Newport Heights via Cliff Drive. Our crews isolated the broken section of water main between Cliff Drive and West Coast Highway. SUBJECT: Dover Drive Water Main Break Repair— Budget AmeAdment November 28, 2000 Page 2 This isolation allowed water service to be restored on both sides of the bay. Doty Brothers, a private contractor, was hired to make the emergency repairs to the water main on a time and materials basis on Thursday morning. A 30 x 30 -foot sinkhole had developed in the number one and two lanes of Dover Drive approximately 50 yards down the hill from Cliff Drive. The cause of the leak was a rupture in the bottom of the 1927 vintage 30 -inch mortar -lined steel transmission main. The water pressure in this main, which transports water from the one side of the City to the Big Canyon Reservoir, was sufficient to fold back a two -foot section of pipe. The damaged section of pipe was replaced by a 30 -inch steel pipe that Utilities had in stock for this type of repair. The repair to the line was completed and pressure tested on Saturday. Debris in the sinkhole damaged a telephone trunk line located 10 feet from the water main. Pacific Bell crews worked Friday and Saturday along side our pipeline contractor to complete their repairs. At the present time, the City has not received a claim for reimbursement from Pacific Bell. Water from the water main break traveled under the pavement towards Coast Highway, lifting and cracking areas of pavement on both sides of Dover Drive. Engineering and General Services staff assessed the damages to the pavement surface and made immediate repairs to northbound Dover Drive. Approximately 450 feet of the southbound lanes on Dover Drive, between Cliff Drive and Coast Highway, was removed and replaced. The pavement contractor, Haitbrink Asphalt, began removing and replacing pavement on Friday and completed the work on Tuesday. The breakdown below covers the cost of outside services, material, or equipment necessary to complete the underground and aboveground repairs. All of these expenses will be funded by the Water Fund, Maintenance and Repair Materials Account 5500 -8160. Doty Brothers Haitbrink Asphalt Harrington Geotechnical Eng County of Orange Wells Supply Linnes Ewles Materials Toomey Industries Myers & Sons Newport Sanitation Total Material and Repairs Pipeline Contractor $45,000 Street Repairs $84,600 Soils testing $1,540 Debris Dump Fee $5,680 30 -inch Valve & Accessories $7,000 Rock & Sand $4,000 Base & Dump Services $600 Message Board & Cone Rental $3,800 Safety Cone Purchase $2,800 Toilet/Sink Rental 200 $155,220 The Public Works Department again wishes to express thanks to all of the City staff which helped in the closure, repair, and clean -up of the area, including the Police Department and General Services Department. It was a great TEAM EFFORT! SUBJECT: Dover Drive Water Main Break Repair— Budget Amendment November 28. 2000 Page 3 Attached is a sheet of photographs showing the water main break and the damage it caused. Respectfully submi , PtfBt WORCK(S/�DEPARTMENT Don Webb, Director By: /Z�(l Tim Deutsch Administrative Coordinator Attachment: Photos 0 • • UTILITIES & GENERAL SERVICES SET -UP STREET CLOSURE CONTRACTOR REMOVING DEBRIS FROM SINKHOLE TO EXPOSE PIPE GENERAL SERVICES CREWS REMOVING ASPHALT SECTIONS SINK HOLE DEVELOPED ONCE WATER VALVES WERE SHUTDOWN EXPOSED PIPE SHOWS 30 -INCH FOLD IN STEEL PIPE ..'r. PAVEMENT LIFTED 6 -INCHES DUE TO HIGH PRESSURE City of Newport Beach BUDGET AMENDMENT 2000 -01 EFFECT ON BUDGETARY FUND BALANCE: Increase Revenue Estimates X Increase Expenditure Appropriations Transfer Budget Appropriations SOURCE: from existing budget appropriations from additional estimated revenues from unappropriated fund balance EXPLANATION: NO. BA- 018 AMOUNT: $1ss,000.00 Increase in Budgetary Fund Balance AND Decrease in Budgetary Fund Balance PX No effect on Budgetary Fund Balance This budget amendment is requested to provide for the following: To increase expenditure appropriations from the Water System Reserve Fund to provide for emergency repair of water main break and pavement replacement in Dover Drive. ACCOUNTING ENTRY: BUDGETARY FUND BALANCE Fund Account Description 500 3605 General Fund Balance REVENUE ESTIMATES (3601) Fund /Division Account Description EXPENDITURE APPROPRIATIONS (3603) Description Division Number 5500 PublicWorks - WaterUtiliities Account Number 8160 Maintenance & Repair Materials Division Number Account Number Division Number Account Number Division Number Account Number Amount Debit $155,000.00 Credit $155,000.00 AutonmUc System Entry. Signed: 11 -1"2— Ch Fi ancial proval: Administr a' a Services Director Date Signed: �� l 09% Administrative Appr al: City Manager 4 Vate Signed: City Council Approval: City Clerk Date