04-1Y0004 Construct Conc Barrier & MGS, Install Striping and Signing

The California Department of Transportation (Caltrans) is soliciting unit-price bids on construction work along State Highway 80 in Solano County—concrete barriers, Midwest Guardrail System (MGS) installation, and striping and signing—under Contract 04-1Y0004, with bids due August 18, 2026 at 2:00 p.m. via Bid Express.

Contractors must hold either a California Class A license or a qualifying combination of Class C licenses (C-32 and C-8). Prevailing wage rates as determined by the California Department of Industrial Relations apply, with federal minimum wage rates applicable when higher. Buy America and environmental product declaration requirements apply to certain materials. Tier 4 interim or Tier 4 final engines are mandated for off-road diesel-fueled vehicles; noncompliance incurs a $2,000 penalty per engine per day of operation.

The work spans from 0.2 miles south of Route 80/29 Separation to Nut Tree Road Overcrossing and encompasses 59 bid items including temporary traffic control, concrete barrier installation, guardrail systems, pavement markings, and landscape erosion control. Work must be completed within 90 working days. The Federal-Aid Project number is HSIMG-0802(379).

The estimated project cost is $1.51 million. Bidders must submit bidder's security equal to at least 10 percent of the bid amount. Subcontractors must be paid within 7 days of receipt of progress payments, with monthly reporting through Caltrans' prompt payment monitoring system. Lane closure restrictions apply on designated holidays and special days, with liquidated damages ranging from $1,000 to $4,800 per 10-minute interval for delayed lane reopenings.