TO: Board of Supervisors
FROM: Steven Lederer - Director of Public Works
REPORT BY: James Reese - Associate Engineer
SUBJECT: Budget Amendment for 2025 Annual County Bridge Repairs, RDS 25-05
RECOMMENDATION
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Approve and authorize creation of Roads Capital Improvement Project 25014 for the "2025 Annual County Bridge Repairs," RDS 25-05 and approve a Budget Amendment in the amount of $300,000 for design. (Fiscal Impact: $300,000 Expense; SB1 Non-Operating Special Revenue Fund; Not Budgeted; Discretionary)
[4/5 vote required]
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BACKGROUND
The Napa County Public Works Department maintains 171 bridges that have a span longer than 12 feet. Napa County has a minor repair maintenance program to evaluate a portion of those bridges every year and create similar groups to make economical yearly repair construction projects. Caltrans inspects and provides bridge inspection reports for 93 bridges that are longer than 20 feet in the unincorporated area of Napa County. The repair recommendations range from doing nothing to complete replacement. In many cases, Caltrans and the Federal Highway Administration (FHWA) provide funding for preventative maintenance or replacement which the County is pursuing, however, repairs are not eligible for federal funding.
County and consultant staff evaluated 14 bridges over 20 feet and three structures under 20 feet but over 12 feet by for repairs this year. If regulatory permits are required for a bridge repair, then County staff will move it to a future year. A portion of the 17 structures will be selected for the 2025 construction season based on similar type of work, location, and budget. Completing this work may include repairing concrete spalls and injecting epoxy into cracks that are key to protecting the structure strength at the following bridges:
1. Dunaweal Lane over the Napa River
2. Aetna Springs Road over Swartz Creek
3. Barnett Road over Burton Creek
4. Airport Road over Fagan Creek
5. Bale Lane over Napa River
6. ...
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