North Orinda Sewer Renovations, Phase 9

Central Contra Costa Sanitary District is soliciting sealed bids under Invitation #DP 100052 for North Orinda Sewer Renovations, Phase 9, with a pre-bid meeting on November 18, 2026 and bids due December 9, 2026. Only California Department of Industrial Relations (DIR)-registered vendors may bid, per SB 854, and the work carries prevailing wage compliance. Class A and C-34 licenses are required.

The project renovates approximately 11,000 linear feet of existing sewer pipelines using open cut, pipe bursting, and horizontal directional drilling. The District reserves the right to add sites after award at its discretion. Bid bond is 10 percent, and performance and payment bonds are each 100 percent. Bid forms in Part III, Volume 1 must be fully executed and submitted in a sealed envelope with all blanks completed, and partial or incomplete bids will not be considered. Late bids will not be accepted.

The estimated bid value is $5.8 million. The contract is awarded on a lump-sum basis over a 300-day duration from a stated start date of November 12, 2026. Performance is in Contra Costa County, California.

The notice describes the November 18, 2026 pre-bid meeting at 11:00 a.m. PST in the District's Board Room, 5019 Imhoff Place, Martinez, California, as mandatory, while also stating that attendance is not required but is recommended. Questions are due November 23, 2026 at 5:00 p.m. PST through the online Q&A period. Bids are due December 9, 2026 at 2:00 p.m. PST at the receptionist area of the same address and will be publicly opened and declared by the District Secretary that day.