AgdaPkt 2006-07-24 - Laserfiche WebLink

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5.10 Page 1 REPORT To the Honorable Mayor and City Council fr9m th~ (Hi M~n~ E!r July 24, 2006 Subject Award of Contract -lagoon Intake Facility II Replacement Project - Phase II Recommendation Approve the Contract Documents and award the contract for the Lagoon Intake Facility II Replacement Project - Phase II to the lowest responsible bidder, Proven Management, Inc. of San Francisco, California, for their low bid amount of $495,336.00. Background The Lagoon Intake FaCility II is located hear the intersection of Marine Parkway and Shearwater Parkway. This facility is one of the three intake structures designed for conveying Bay water from the Belmont Slough into the interior lagoon of Redwood Shores. The water will then discharge back to the Bay by discharge facilities located at different locations. The proposed improvements are intended to promote a better lagoon circulation system, which are necessary for the health, safety, and welfare of the public. This project is the second phase of the Lagoon Intake Facility II Replacement Project. Originally, this was included in the first phase, but was deleted due to substantial discrepancies between the City's Engineer's Estimate and the Contractor's bid price. The City has performed a thorough and careful deliberation of the value engineering and the contractor's line of specialty, and it was decided to break the original project into two phases. Phase 1, which was completed recently, was categorized as the most critical activity of the original proposed project that needed to be performed (i.e., the installation of new dewatering structure, installation of the two new 48-inch diameter reinforced concrete intake pipes, installation of 54-inch diameter concrete intake pipe @ Belmont Slough, installation of 8 lineal feet of stub-out from the dewatering structure, slide gates and other related activities). The second phase of the project will consist of the installation of a new 54" Reinforced Concrete Pipe (RCP) that will connect to the newly installed 54 "RCP stub-out. The proposed 54" RCP pipe will allow water from the Belmont Slough to flow through the existing storm drainage system to the lagoon System. The work will consist of fumishing and installing new 54" RCP storm drain pipes, fittings and appurtenances; new storm drain manholes, piping and manhole connections and other related work; excavation, shoring backfill and compaction, removal and reconstruction of pavement and landscaping; dust alleviation and control; stormwater pollution prevention, and daily site cleanup and associated work. Page 1 of 2 ..