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<br />tEf. / ¿f- / <br /> <br />REPORT <br /> <br />To the Honorable Mayor and City Council <br />From the Ci Mana er <br /> <br />October 24, 2005 <br /> <br />Subject <br />Award of Contract - 2004-2005 Storm Drain Improvements Project <br /> <br />Recommendation <br />Approve the Contract Documents and award the contract for the 2004-2005 Storm <br />Drain Improvement Project to the lowest responsible bidder, Shaw Pipeline of San <br />Francisco, California, for their bid of $508,180.00. <br /> <br />Background <br />In an effort to improve the City of Redwood City's storm drainage system, and in <br />response to numerous complaints received from residents, Engineering and <br />Construction (in coordination with Public Works Services) has begun a series of <br />investigations to identify, evaluate and analyze the condition of the existing storm drain <br />catch basins/inlets in different locations within Redwood City. <br /> <br />There are approximately 170 siphon/bubble-up catch basins/inlets that were <br />constructed in street corners in various locations, which are not connected to any storm <br />drain lines, because there are actually no available storm drain lines along the streets. <br />These inlets are only connected with short pipes crossing street intersections. The <br />storm water flows by gravity from the upstream inlet to bubble-up at the downstream <br />inlet, and continue its surface flow along the existing curb and gutter until it reaches a <br />proper underground storm drain system. Because of this, local ponding or flooding <br />occurs in the vicinity areas. These inlets are also storing stagnant water that creates a <br />foul odor, and have become a health and safety concern to residents. <br /> <br />After careful studies, the problem areas were identified and divided into seven (7) <br />priority areas, in order to address one area at a time. <br /> <br />This project is the second priority area needing immediate attention among the seven <br />identified priority areas, which has an inadequate drainage system causing chronic <br />flooding problems. <br /> <br />The scope of this project is to furnish and install new storm drain pipes, fittings and <br />appurtenances; furnish and install new storm drain manholes, replacement and <br />installation of new combination curb/grate inlets, and other associated work. The <br />proposed pipes will be laid along Flynn Avenue, Spring Street and Scott Avenue, with <br />an approximately 2,379 lineal feet of RCP pipe ranging from 12" to 24" in diameter. <br /> <br />Page 1 of 2 <br />