Title
Department of Transportation recommending the Board take the following actions related to the Mosquito Road Bridge at South Fork American River - Bridge Replacement Project, Capital Improvement Program number 77126/36105028:
1) Receive an update regarding the latest project construction details for the replacement of the Mosquito Road Bridge;
2) Adopt Addendum 2 to the Final Environmental Impact Report certified by the Board on August 8, 2017; and
3) Approve the Project as revised in Addendum 2 to the certified Environmental Impact Report.
FUNDING: Highway Bridge Program Funds (99.9%) and Sacramento Municipal Utility District Funds (0.1%). (Federal and Local Funds)
Body
DISCUSSION / BACKGROUND
The Mosquito Road Bridge at South Fork American River - Bridge Replacement Project (Project) is replacing the existing Mosquito Road Bridge with a segmental cast-in-place box girder bridge over the South Fork American River on Mosquito Road. On May 17, 2022, Item 27, Legistar 22-0364, the Board approved the construction contract and awarded it to Shimmick Construction Company, Inc. (Contractor). The Project includes the construction of temporary access; the foundation construction of cast-in-drilled-hole (CIDH) concrete piles, optional micropiles, sub-structure, and super-structure bridge work; the construction of tie back, soil nail, soldier pile, and reinforced concrete retaining walls; and grading, paving, and drainage system improvements for the re-aligned approach roadway. The Project duration is 700 working days and is anticipated to be complete by Spring 2025. The Project will install bollards at the entrances to the existing bridge to restrict future vehicle usage after the new bridge is open to traffic. The existing bridge will be removed from the Department of Transportation’s (Transportation) inventory list and then converted to a bicycle and pedestrian bridge under a separate construction contract with County funding.
Transportation’s Contractor has ...
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