04-0Q8004 Install Drainage Systems and Pvmt Delineation, Construct Driveway

California Department of Transportation District 04 has issued a Notice to Bidders for construction work on State Highway Route 121 in Napa County — installing drainage systems, pavement delineation, and constructing a driveway at two locations (Sousa Lane at Post Mile 6.9 and 1.4 miles north of Vichy Avenue at Post Mile 12.1) — with bids due August 27, 2026 and contract award to the lowest responsible bidder within 60 days after bid opening.

The project carries a 5 percent Disadvantaged Veterans Business Enterprise (DVBE) goal and a 5 percent Small Business Enterprise (SBE) participation goal. Non-SBE bidders may optionally request a non-small business subcontractor preference by committing 25 percent of work to certified SBEs. Prevailing wages are required under California law.

The scope encompasses 44 bid items: traffic control systems, erosion control measures, earthwork, drainage infrastructure (corrugated steel pipes and concrete inlets), asphalt concrete paving, structural concrete, pavement markers, and thermoplastic traffic striping. Contractors must hold either a Class A contractor license or a combination of Class C licenses (C-8, C-12, C-42) constituting a majority of the work. The contract includes specialized requirements for local material sampling and analysis, environmental product declarations for asphalt and concrete, water pollution control, invasive species management, and species protection measures including preconstruction clearance surveys and construction personnel training.

The estimated project cost is $780,000. Work must be completed within 70 working days. Time constraints restrict construction activities from November 1 to May 31 at Post Mile 6.8–7.0 and from November 1 to July 31 at Post Mile 12.0–12.2. Bidders must submit unit-price bids via the Bid Express website with bidder's security equal to at least 10 percent of the bid amount. The specifications reference 2025 Standard Specifications and Standard Plans, approved March 30, 2026.