Jamacha Force Main and Gravity Main Sewer Improvements

The County of San Diego Department of Public Works is soliciting bids for the Jamacha Force Main and Gravity Main Sewer Improvements project under solicitation number 20260722042, with bids due by August 13, 2026. The project involves replacing a 12-inch sewer force main with approximately 4,500 linear feet of new 18-inch dual force main along Jamacha Blvd in Spring Valley, California, along with replacing about 400 linear feet of gravity sewer pipe. Additional work includes installing new sewer maintenance holes, piping within the pump station yard, and sewer plug valves. Major construction activities encompass trenching, dewatering, sewage bypassing, and traffic control measures. The work must comply with Caltrans Standard Specifications 2015 and the County of San Diego Modified Standard Specifications, with special provisions taking precedence. The estimated contract value is $9,215,826.50, although many line items in the pricing schedule are listed as lump sum or lack unit pricing. Proposals must be submitted via the County’s BuyNet portal in sealed physical form using official forms and must include a bidder’s bond and a Small-Local Business Utilization Plan. Offerors must certify their business status as a small business, social equity enterprise, or local business, with affirmative responses triggering additional documentation such as Form PC610 or PC611 and compliance with CARB fleet regulations. Subcontracting is limited to 20% of the contract value, with a minimum of 30% of work required to be self-performed. The contractor must employ a qualified superintendent and adhere to nondiscrimination, equal employment opportunity, and DBE participation requirements. Inspection and acceptance are controlled by the County, with materials and work evaluated on-site using California Test and ASTM methods. All work must conform to strict marking, documentation, and traceability standards for materials such as thermoplastics and conductors. Required project documentation includes eight attachments covering geotechnical reports, as-built drawings, easement records, and CCTV inspections. Payment and invoicing procedures, accounting codes, and electronic invoicing systems are not specified, and while a contracting officer representative role is referenced, specific contact details for the COR, COTR, or PCO are absent.