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HomeMy WebLinkAboutItem 2d: Accept all Work as Complete from E & Construction for Water Main Replacement Project s G ,, ,i . , i! op Ieeeee.,ed ri Ti S, 1..! VV STAFF REPORT Public Works Services Department DATE: January 4, 2011 TO: Mayor and City Council FROM: Tom Tait, Public Works Services Director Prepared by: Ken Herman, Deputy Public Works Services Director Tiffany Lee, Associate Civil Engineer SUBJECT: ACCEPT ALL WORK PERFORMED BY E &R CONSTRUCTION, INC. FOR THE WATER MAIN REPLACEMENT PROJECT AS COMPLETE AND AUTHORIZE THE FINAL PAYMENT TO BE MADE IN ACCORDANCE WITH THE CONTRACT DOCUMENTS Recommendation: Approve SUMMARY On July 6, 2010 the City Council awarded a contract to E &R Construction, Inc. in the amount of $246,687 for the 2009 -10 Water Main Replacement Project. The terms and conditions of this project have been complied with and the work has been performed to staffs satisfaction for a total project cost of $264,903.40. This amount reflects the original contract amount of $246,687 plus contract change orders for additional work, totaling $18,216.40, or 7.38% of the original contract price. Staff recommends that the City Council accept all work performed by E &R Construction, Inc. as complete and authorize the final payment to be made in accordance with the contract documents, subject to retention of $26,490.34. DISCUSSION The eight -inch (8 ") water main along Monte Verde Drive was installed in 1944 and is made of cast iron, which is brittle and susceptible to leaks and breaks. City crews have frequently made emergency repairs to this stretch of pipeline. The work also involves replacement and installation of additional fire hydrants on Monte Verde Drive to meet current fire protection requirements. The replacement of the existing eight -inch (8 ") cast iron water main along Highland Vista Drive north of Highland Oaks Drive was also added to the project due to a recent major break, which was the second break along this section of mainline in the past several years. The recent water main break at this location caused roadway damage, water service disruptions, and excessive repair costs. Page 1 of 2 Mayor and City Council January 4, 2011 The final construction cost of the Project is $264,903.40. This amount reflects the original contract amount of $246,687 plus contract change orders for additional work, totaling $18,216.40, or 7.38% of the original contract price. A summary of the additional work performed in the change order's is as follows: Change Order Description of Change or Work Amount Additional work required for asphalt pavement 1 repair on Highland Vista Drive and install additional $4,716.40 main line valves. Additional work required for the removal and 2 replacement of existing clay soil that was unsuitable $13,500.00 for backfilling the excavation on Monte Verde Drive Total Change Order $18,216.40 The soil that was excavated on Monte Verde was clay and contained extraordinarily amount of moisture; thus it was not suitable to backfill with. As a result, the contractor needed to import crushed aggregate base material which was required to backfill the water main. Therefore, all terms and conditions of this contract have been complied with and the work has been performed to staff's satisfaction. Staff recommends that the City Council accept all work performed by E &R Construction, Inc. as complete and authorize the final payment to be made in accordance with the contract documents, subject to retention of $26,490.34. ENVIRONMENTAL ANALYSIS: This project consists of the replacement and minor alteration of an existing utility system with no expansion of the system and therefore qualifies as a Class 2 categorical exemption per 15302 (c) of the California Environmental Quality Act. FISCAL IMPACT: Funds in the amount of $300,000 have been budgeted as a part of the 2009 -10 Capital Improvement Program for the Water Main Replacement Project. RECOMMENDATION: 1. Accept all work performed by E &R Construction, Inc. for the Water Main Replacement Project as complete. 2. Authorize final payment to be made in accordance with the contract documents, subject to retention of $26,490.34. Approved: P rrr-r,YJ TT:KH:tI Donald Penman, City Manager Page 2 of 2