07-379904 Construct GSRD, DPPIA and Install Irrigation System

California Department of Transportation (Caltrans) District 07 is requesting bids for construction of a Gross Solids Removal Device (GSRD), Designed Pollution Prevention Infiltration Area (DPPIA), and installation of an irrigation system on State Highway Routes 10 and 57 in Los Angeles County under Contract 07-379904 (Federal-Aid Project NH-X037(249)), with electronic bids due by 2:00 p.m. on December 8, 2026 via Bid Express.

Contractors must hold either a California Class A license or a combination of Class C licenses (C-12, C-42, C-27) constituting a majority of work value. Prevailing wages are mandated; contractors must pay the higher of California Department of Industrial Relations rates or federal minimum wage rates set by the U.S. Secretary of Labor. Buy America/Build America compliance applies to manufactured products and construction materials. Local material sourcing from noncommercial or non-California-regulated sources requires pH and lead analysis. Environmental product declarations are required for hot mix asphalt and concrete. Work locations span Route 10 from 0.2 miles west of Francisquito Avenue Undercrossing to Fairplex Drive Overcrossing and Route 57 from 0.3 miles south of Brea Canyon Road Undercrossing to Gladstone Street Undercrossing.

The project includes 116 bid items covering temporary traffic control, erosion control, earthwork, landscape and irrigation work, drainage facilities, asphalt concrete surfacing, and electrical systems. Contractors must complete work excluding plant establishment within 350 working days and including plant establishment within 600 working days, with plant establishment completion within 250 days. The estimated project cost is $7.4 million. Bidder's security must equal at least 10 percent of the bid amount. Bids must be submitted on a unit price basis. The contract includes coordination with five coincident or adjacent projects and provisions for Dispute Resolution Advisor and Dispute Resolution Board services on an as-needed basis. Submittal requirements include safety representative qualifications and certifications and site-specific safety programs.