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<br />6.1G <br />Page 1 <br /> <br />REPORT <br /> <br />To the Honorable Mayor and City Council <br />From the Ci Mana er <br />. - . - , .. . <br /> <br />November 24, 2008 <br /> <br />SUBJECT <br />Amendment No.1 to the Professional Services Agreement with Moffat & Nichol for <br />Pr()fessionalErigirieering arid Desigri SeiVices . .. .... ... <br /> <br />RECOMMENDATION <br />Approve, by motion, Amendment No.1 to the Professional Services Agreement with <br />Moffat & Nichol for design and engineering services for the Redwood Shores Lagoon <br />System Dredging, not to exceed $49,301.00. Authorize the City Manager to approve <br />amendments not exceeding 10% of the total contract value for additional scope of <br />services. <br /> <br />BACKGROUND <br />On November 14, 2005, Council approved the original agreement with Moffat & Nichol <br />for Engineering and Design Services for Phase I for the Redwood Shores Lagoon <br />System Dredging in an amount not to exceed $106,764.00. This initial phase was to <br />collect and sample the dredge material and identify areas where dredging is required to <br />remove sediment that have deposited in the lagoons. Moffat & Nichol has completed <br />Phase I. <br /> <br />This past Spring, the City hired a contractor to replace many of the non-working sluice <br />gates that drains into the lagoons. During construction, staff confirmed that sediment <br />has considerably built up in front of many of these sluice gates; making it difficult for <br />maintenance workers to maintain and clean the storm piping that drains into the <br />lagoons. Staff and the consultant believes that concentrating the removal of sediments <br />near these sluice gates and other areas where there are excessive growth of widgeon <br />weed caused by build up of sediments will improve the quality of the lagoons for many <br />more years. <br /> <br />When completed, this project not only will improve the circulation of stagnant water but <br />will allow maintenance staff to clean and maintain the storm drainage system that drains <br />into the lagoons. <br /> <br />Staff proposes Amendment No. 1 in an amount not to exceed $49,301.00, for design <br />and engineering services to be performed by Moffat & Nichol and their sub-consultants. <br />Services include additional site investigation, preparing design plans and specifications, <br />and providing construction support services. <br /> <br />ALTERNATIVES <br />Council may choose not to approve the proposed amendment and direct staff to <br />postpone this work which will impact the functionality of the lagoons in Redwood <br />Shores. <br />