Spec No. 25-04, C51679, Agricultural Road Crossing No. 4 (ARC 4) Fish Passage Tule Canal, Yolo Bypass

This contract, identified by solicitation number 0000039075 and contract number C51679, is for the replacement of an earthen crossing with a precast concrete bridge to provide vehicle and equipment access across the Tule Canal within the Yolo Bypass area of California. The project, designated as Agricultural Road Crossing No. 4 (ARC 4), is led by the California Department of Water Resources with an estimated cost range of $4 million to $4.5 million. The work involves earthwork, structural concrete placement, installation of reinforcing steel, and use of controlled low-strength material, all requiring strict compliance with Caltrans and ASTM standards, including ACI 301 for structural concrete and ASTM A615 for reinforcing steel. The contract specifies detailed material traceability requirements, such as mill markings on reinforcing steel, tagged bundles matching test reports, and permanent identification of steel pipe piles, with all materials subject to rejection if unverified. Performance obligations include achieving 95% compaction of backfill within tight moisture tolerances, submitting a seeding and erosion control plan, and furnishing certified concrete mix designs, manufacturer data, and quality control documentation within prescribed timeframes prior to critical milestones. The contract mandates a Notice to Begin Work within 21 days of bid opening, with all work required to be completed by October 31, 2027. Mobilization must commence within 14 days of the notice, and on-site activities require a seven-day advance notification. Contractors must deploy a superintendent with at least three years of relevant experience and a full-time ACI-certified quality control inspector with two years of experience. Mechanical splice operators must be prequalified with documented test results per California Test 670, and welding procedures and welder qualifications must be submitted. Material delivery is to be coordinated to the job site at Tule Canal near Old River Road and North Harbor Blvd., while surplus materials must be transported to the Yolo Storage Facility in Woodland. Bids must be submitted physically to the California Natural Resources Agency Headquarters in Sacramento between 12:00 and 2:00 p.m. on May 27, 2026, with a public electronic bid opening. An inspection trip is scheduled for May 6, 2026, at the project site. No federal acquisition regulation clauses are incorporated, and while no formal evaluation weightings or award basis are stated, the structure of required submittals