Construction of the New District Attorney Office Building

Calaveras County is requesting bids for construction of a new single-story District Attorney Office Building at 891 Mountain Ranch Road, San Andreas, California under ITB, with bids due September 10, 2026 at 2:00 p.m. and a pre-bid conference on August 26, 2026 at 10:00 a.m. Bidders must be licensed and bonded in California and Calaveras County, with proven experience completing at least two public building construction projects within the past five years, each valued at a minimum of $10 million—a significant capability filter.

The scope encompasses site preparation and excavation; concrete foundations and structure; framing, roofing, and exterior finishes; electrical, plumbing, and HVAC systems; interior finishes including flooring, drywall, and painting; site work and landscaping; and compliance with all local building codes and regulations. The contract is structured as a lump-sum base bid plus six bid alternates.

The estimated project cost is $5 million with a 425-calendar-day estimated duration and completion targeted for December 2027. Contract award and execution are expected by September 14, 2026, with a Notice to Proceed date of October 14, 2026.

Bidders must submit a bid bond of 10% and, if awarded, provide performance and payment bonds each equal to 100% of the contract value. Bidders must demonstrate an average Workers' Compensation Experience Modification Rate (EMR) of 1.00 or less for the most recent three years, have no history of termination for cause or adverse claims within the past five years, and comply with California prevailing wage rates. Calaveras County will award to the lowest responsive, responsible bidder and reserves the right to reject any or all bids. Questions must be submitted in writing by August 31, 2026 through the Public Purchase platform.