How to bid CTDOT construction contracts: prequalification and the Part C request
CTDOT prequalifies its own prime contractors, and each bidder must send a Bid Proposal Request Form (Part C) and get approval for each project.
The Connecticut Department of Transportation advertises construction projects and answers bidders' questions on its Contracts Q&A site. Our bids page reads the Q&A project list every day.
1. Prequalify with CTDOT
CTDOT says prospective bidders must be prequalified by the department to bid on and receive construction contracts. Applications, annual update certifications and revisions are filed in CTDOT's online system. Subcontractors do not need CTDOT prequalification; only primes bidding directly do.
2. Request the proposal
All prospective bidders must submit a Bid Proposal Request Form (Part C) for review and approval to be eligible to bid on a specific project.
3. DAS prequalification is separate
The Department of Administrative Services prequalifies contractors for state and municipal building work over $1 million, but CGS 搂 4a-100 excludes highway and bridge projects administered by DOT.
4. Payment
See Connecticut mechanic's lien and bond deadlines.
Summary for general information, reviewed 2026-10-30. Not legal advice; check the source before relying on a deadline or threshold.
CTDOT: Contractor prequalification information
CTDOT Contracts Q&A
DAS: Contractor prequalification
CGS 搂 4a-100
More guides: Connecticut contractor registration 路 Connecticut mechanic's lien and public bond deadlines 路 Selling to Connecticut government 路 County hubs