Springbrook Road Culvert and Sinkhole Repair

The contract awards the Springbrook Road Culvert and Sinkhole Repair project in Walnut Creek, California, to a contractor for the removal of a 36-inch Corrugated Metal Pipe and the installation of 62 linear feet of 36-inch Reinforced Concrete Pipe and 29 linear feet of a cast-in-place 4-foot by 3-foot box culvert. Additional work includes replacing an existing drainage structure with a Type IV manhole, installing two Type III manholes, clearing and grubbing, milling and overlaying the pavement, and reconstructing roadway striping. The project is federally funded and must comply with Buy America provisions under the Surface Transportation Assistance Act, as well as California’s prevailing wage requirements set by the Department of Industrial Relations. Contractors are required to hold a valid Class A or C-12 license, register with the Department of Industrial Relations, and provide both payment and performance bonds. A 5% retainage is withheld until final acceptance, with an option to substitute securities for cash retainage upon County Treasurer-Tax Collector approval. The solicitation, issued by the Contra Costa County Public Works Department with solicitation number 20260724035 and bid number 0672-6U6252, has a posted date of July 27, 2026, and a bid deadline of August 18, 2026, at 2:00 p.m. All bids must be submitted electronically through the Online Planroom, with no physical submissions accepted. The estimated contract value is $600,000 based on the agency’s engineer’s cost estimate, and the performance period is set at 40 working days, though specific start and end dates are not provided. Inspection and acceptance occur on-site at the project location, with the County retaining authority over compliance and final payment release. The contract references compliance with Public Contract Code sections 7201, 9203, and 22300, and Labor Code 1771.4, along with Title VI nondiscrimination requirements. No formal FAR clauses are applicable; instead, the contract adheres to state-level procurement regulations. The primary point of contact is Henry Hussey of the Contra Costa County Public Works Department, who serves as the primary liaison for all bid and contract administration matters.