Contra Costa County (County) is seeking qualified consultants to provide structural engineering services for County projects. Search 363 U.S. and Canadian government construction services contracts for bid in Contra Costa County (CA) that GovWin IQ is tracking.Below you will find all of our current open RFI, RFP, and RFQ bids as well as instructional videos for the budget templates. Type or print neatly in ink when filling out this form. Incomplete form will be returned to the applicant. The Fee Proposal (ATTACHMENT F) shall be filled out, executed, and submitted in accordance with the instructions in the invitation. Construction. Bid Express provides web-based secure internet bidding for construction bids and contracts.