2026 Annual Guardrail Repair

Napa County Department of Public Works is requesting bids on guardrail repair work at 17 county road locations and Dry Creek Bridge (Dry Creek Road MPM 5.59) combined as the Base Bid, with an additive alternate for replacing four crash cushions at St. Helena Highway; bids are due August 25, 2026 at 11:30 a.m. electronically through OpenGov. Contract award is based on the lowest Base Bid price.

Bidders must hold a Class A, C-13, or C-32 California contractor license and be registered with the State Department of Industrial Relations as a Public Works Contractor at bid opening. The work scope includes mobilization, asphalt grinding and resurfacing with HMA-Type A, metal guardrail system installation (primarily MGS A77L2 with steel posts and plastic blocks), end treatment installation (SoftStop TL-3, MSKT TL-3, buffer and rolled terminals, SRT, MFLEAT, A77Q structures, and Buried Post End Anchor systems), crash cushion replacement with CALTRANS MASH-approved Delta Intelligent units, temporary traffic control, erosion and sediment control, and final cleanup across approximately 373 linear feet of total guardrail repairs. Work must comply with 2024 CALTRANS Standard Plans and Napa County Road and Street Standards. Construction activities are restricted to 7:00 a.m.–5:00 p.m. Monday–Friday (St. Helena Highway work 7:00 a.m.–3:00 p.m. only due to local noise ordinance), with no work permitted when ambient temperature is below 55 degrees Fahrenheit. Work must begin within ten calendar days of Notice to Proceed and complete within 45 working days.

The engineer's estimate is $485,000. Bidders must submit a bid guarantee equal to 10% of the total bid amount; the successful bidder must furnish Performance and Labor and Material Bonds each equal to 100% of the contract price. Bids remain valid for 90 days from opening. California prevailing wage requirements apply. Liquidated damages are $2,000 per calendar day for delays beyond prescribed working days. A 5% retention is withheld from progress payments and released within 60 days of project completion; subcontractors must receive retained amounts within ten days of the contractor receiving County payment. Required insurance includes comprehensive general liability of $2,000,000 per occurrence (or $5,000,000 if crane is used), workers' compensation with employer's liability limits of $2,000,000, and comprehensive automobile liability of $1,000,000 per occurrence.

Questions and substitution requests are due August 14, 2026 at 12:00 p.m., with responses due August 20 at 5:00 p.m. Bid opening is online via Microsoft Teams on August 25, 2026.