AgdaPkt 2002-04-08 - Laserfiche WebLink

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From the City Manager April 8, 2002 Subject Final Acceptance - Redwood Shores Street System Improvements Project Engineering File No. 803-02 Recommendation Accept, by motion, the Redwood Shores Street System Improvements Project, and authorize the release of bonds and retention. Background On December 4, 2000, the City Council adopted Resolution No. 14091, awarding the construction contract for the Redwood Shores Street System Improvements Project to RGW Construction, Inc. of Livermore, California. The original contract was in the amount of $2,229,323.55. The majority of this project is the non-Caltrans portion (Phase 1) of the improvements that is funded by the Redwood Shores Community District No. 99-1, commonly referred to as Shores Transportation Improvement District (STID). This portion of the contract covers the improvements to the local streets, primarily at intersections. The majority of vehicular congestion was caused by inefficiencies at intersections, especially tuming movements. Making improvements at these locations improves the overall efficiency of the system, and helps with the traffic to, ~nd fro,'~, the freeway. Improvements included additional turn lanes, converting through-i~nes into turn lanes, traffic signal modifications and lengthening of turn lanes. In addition, drainage and roadway surface within the project areas were reconstructed as needed. This project involved improvement to the following four intersections: ~*' Marine Parkway at Twin Dolphin Drive Marine Parkway at Bridge Parkway Marine Parkway at Oracle East Street Redwood Shores Parkway and Bridge Parkway Two Change Orders were issued on this contract: 1. Change Order #1 was issued on November 8, 2001, in the amount of $216,805.56. This change order covered the majority of difficulties that were encountered on the project, as follows: ~, The major component of the change order was the quantity adjustment for the asphalt paving. It is difficult, at best, to estimate the amount of asphalt that would be needed to build up the street so that the surface would be smooth and storm water would drain properly. However, the first class results of the paving job, made up for this unanticipated expense. Extra expenditures were also incurred because of unforeseen underground obstructions. These were mainly shallow irrigation lines and abandoned storm drain lines, which had to be relocated or removed.