Site work and renovation of a mixed-use development in Antioch, California. Completed plans call for the renovation of a 11,803-square-foot library; and for site work for a library.

**As of November 3, 2025 , this project has not yet been awarded. The project is expected to be awarded on November 4, 2025.** The project includes one building with a total of 11,803 SF to demolish and replace several electrical systems. The existing main switchboard will be replaced with a 600A switchboard to accommodate the lighting changes and provide capacity for future electrical services. The interior lighting system will either be retrofit or new light fixtures with energy efficient light emitting diode (LED) bulbs will be installed. In addition, new power outlets will be installed on the main library floor for public use. Lastly, the installation of power outlets triggers accessibility improvements for the building which includes accessible parking re-location, path of travel improvements from the parking lot to the main entrance, and public restroom upgrades. F.D. Permit Number 2025-000431 Authorization Numbers: WH100A additional doc acq note: The drawings and specifications may be examined at the County Public Works Department, 255 Glacier Drive, Martinez, California 94553-4897, Monday - Thursday (7:00 a.m. - 12:00 noon and 1:00 p.m. - 5:00 p.m.) and Friday (8:00 a.m. - 12:00 noon and 1:00 p.m. - 4:00 p.m.). Drawings and specifications are not available for purchase at the 255 Glacier Drive location. Drawings and specifications (not including documents included by reference) and proposal forms may be obtained by prospective bidders via the Contra Costa County Public Works Department's Online Planroom Question Deadline 08/26/2025 at 3:30 PM PT Technical questions regarding the contract documents should be directed in writing to the Capital Projects Management Division at jae.lee@pw.cccounty.us. additional pre bid meeting note: A mandatory virtual pre-bid conference will be held. Discussion will cover recommended outreach efforts, resources and any other subjects of interest to attendees. The login details for the MS Teams call