04-3Y7104 Mod Sig & Ltg, Pvmt Repair, SW, Curb Ramp, Segmental Conc Ret System

The California Department of Transportation (Caltrans) District 04 is requesting bids on a construction project involving signal and lighting modifications, pavement repair, sidewalk work, curb ramp installation, and a segmental concrete retaining system on State Highway 12 in Sonoma County near Boyes Hot Springs (Contract 04-3Y7104), with bids due November 5, 2026 at 2:00 p.m. via Bid Express and a federal-aid designation (HSNH-P012(135)).

Contractors must hold either a Class A license or a combination of Class C licenses (C-10 and C-12) constituting a majority of the work. Prevailing wages are required at rates determined by the California Director of Industrial Relations and federal minimum wage rates as set by the U.S. Secretary of Labor; contractors must pay the higher rate where they differ. Buy America requirements apply to iron, steel, and manufactured products; a De Minimis Costs waiver is available when non-compliant materials total no more than the lesser of $1,000,000 or 5 percent of total applicable project costs. The project includes a federally mandated four trainee or apprentice positions.

The scope comprises 78 bid items spanning temporary and erosion control, segmental concrete retaining systems, concrete curbs and sidewalks, drainage inlets, pavement marking, and electrical systems modifications for traffic control devices. Work is confined to State Highway 12 from Donald Street to 0.1 mile south of Lomita Avenue (Post Mile 35.7/36.1). Completion must occur within 160 working days. Lane closure restrictions apply during designated holidays and special days, with liquidated damages of $1,000 per 10-minute interval for exceeding closure pickup times, limited to 5 percent of total bid per occurrence. Professionally facilitated project partnering is required. The contractor must designate an on-site safety representative meeting specific Cal/OSHA certification and experience requirements.

The estimated project cost is $4,800,000. Bidder's security equal to at least 10 percent of the bid amount is required. Bids will be opened and publicly read via webcast or teleconference immediately following closing. The project involves coordination with adjacent contracts (04-4AC40 and 04-0X210) in Sonoma County.