TO: Board of Supervisors
FROM: Steven Lederer, Director of Public Works
REPORT BY: Sydney Barclay, Associate Engineer
SUBJECT: Adoption a Resolution Adopting a Mitigated Negative Declaration, Approving Plans and Specifications, and Authorization to Advertise for Bids for the "HSIP Cycle 11 Silverado Trail Intersection Improvements" Project.
RECOMMENDATION
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Adopt a Resolution adopting a Mitigated Negative Declaration, approving the Plans and Specifications, and authorizing to advertise for sealed bids, and opening of the bids at a time, date, and location to be published by the Director of Public Works pursuant to Section 20150.8 of the Public Contract Code for the "HSIP Cycle 11 Silverado Trail Intersection Improvements" Project, RDS 22-26. (No Fiscal Impact; Discretionary).
[4/5 vote required]
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BACKGROUND
Napa County received the Highway Safety Improvement Program (HSIP) Cycle 11 grant to fund safety improvements at three intersections along Silverado Trail: Oak Knoll Avenue, Zinfandel Lane, and the Strawberry Patch (located approximately 0.4 mile north of Trancas Street). The purpose of this project is to reduce collisions and improve safety and visibility for motorists and bicyclists at these locations.
In general, the project includes upgrading bicycle lane striping at all three intersections; installing streetlighting and advanced flashing beacons at the Oak Knoll Avenue and Zinfandel Lane intersection; constructing a right-turn lane at Oak Knoll Avenue; and constructing a left-turn lane at the Strawberry Patch. To accommodate the proposed turning lanes, widening on Silverado Trail will be required, which necessitates the removal of some existing vegetation and oak trees. As part of project mitigation, trees removed will have a 2:1 replanting ratio and a three year monitoring period, to ensure oak tree survival.
These improvements are intended to enhance overall traffic safety, improve bicycle accommodations, and increase intersection visi...
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