Dry Creek Bridge Wingwall Repair Project At Alvarado-Niles Road

The Dry Creek Bridge Wingwall Repair Project at Alvarado-Niles Road in Union City, California, is a municipal construction solicitation issued by the City of Union City under Bid #24-11, with a response deadline of August 17, 2026. The scope of work includes the complete removal and disposal of an existing wingwall, footing, and barrier, followed by excavation, backfill, and installation of new concrete structures including a retaining wall, barrier, and sidewalk. Work also involves reconstruction of a portion of the paved trail, removal and replacement of wood rail and posts, and painting of lumber and timber components. Strict compliance with Caltrans Standard Plans and Specifications, as well as City of Union City standards, is mandatory. The contractor must implement temporary shoring, erosion and water pollution control measures, and a traffic control plan. Onsite staging and storage are prohibited, requiring daily removal of all materials and equipment. All work must be completed within 30 working days following issuance of the Notice to Proceed at the designated location approximately 200 feet east of the intersection of Alvarado-Niles Road and Western Avenue. The contractor must hold a valid California Class A General Engineering license and be registered with the Department of Industrial Relations (DIR), and all subcontractors must also be DIR-registered. Prevailing wage rates under California Labor Code Section 1770 apply. Financial assurances include a 10% bid bond, performance and payment bonds at contract execution, and a 10% maintenance bond covering a one-year period post-completion. Insurance requirements mandate workers’ compensation, $1 million employer’s liability, $1 million commercial general liability, and $1 million automobile liability coverage. A 5% retention is withheld from progress payments and released 35 days after final acceptance. Liquidated damages of $500 per day apply for delays beyond the 30-day performance period, capped at 10% of the contract value. Bids must be submitted by email or in person by 2:00 p.m. on the deadline date and include completed license certifications, a list of proposed subcontractors, workers’ compensation insurance documentation, and certificates of insurance. The award will be made on a lowest price technically acceptable basis, with failure to meet mandatory compliance criteria resulting in rejection regardless of bid amount. No contract value has been determined as the bid schedule lacks unit prices. All project data and documents become city property upon completion, and the contractor must certify compliance with non