Caldecott Tunnel Bores 1, 2, and 3 Rehabilitation and Ventilation Upgrade

The Caldecott Tunnel Bores 1, 2, and 3 Rehabilitation and Ventilation Upgrade project is a state infrastructure initiative led by Caltrans, District 4, under the oversight of the California Transportation Commission. The work encompasses comprehensive structural rehabilitation of all three tunnel bores located on State Route 24 across Alameda and Contra Costa Counties, alongside the installation of a new fire suppression and mechanical ventilation system designed to enhance safety, operational reliability, and emergency response capabilities. The project site spans from Post Mile R5.80 to R6.24 in Alameda County and from PM R0.00 to R0.60 in Contra Costa County, with all construction activities confined to this corridor. Environmental compliance was established through a Mitigated Negative Declaration under the California Environmental Quality Act, with approved mitigation measures documented and filed with the Office of Land Use and Climate Innovation in Sacramento, while administrative records are maintained at Caltrans District 4 in Oakland. The project is governed by a special-notice solicitation dated August 20, 2025, with a filing deadline of August 18, 2025, and approval granted by the California Transportation Commission on August 14–15, 2025. No contract value, payment terms, accounting codes, invoicing systems, or specific contract type (such as fixed-price or cost-reimbursable) have been disclosed. The Statement of Work outlines the scope but lacks detailed technical specifications, deliverables, or referenced standards, though compliance with Caltrans design guidelines and industry practices such as NFPA codes is presumed. Inspection and acceptance will occur at the project site with final documentation processed by state agencies; however, details regarding the Contracting Officer’s Representative, Technical Representative, Procuring Contracting Officer, or contractor submission requirements, including evaluation factors, offeror certifications, size status, or unique entity identifiers, are absent. The only explicitly referenced attachment is the Notice of Determination under Public Resources Code Section 21108. Point of contact for procurement matters is Brycelyn Hendrix, Environmental Scientist at Caltrans District 4, with Cherry Zamora serving as an administrative liaison. No delivery schedules, FOB terms, packaging requirements, or electronic submission protocols have been specified, indicating key contractual elements remain undefined in the available documentation.