How to bid ALDOT highway contracts

The Alabama Department of Transportation (ALDOT) lets highway and bridge construction through its Bureau of Office Engineer. Letting information is on the ALDOT Project Letting site.

1. Get prequalified

Prime contractors file ALDOT's prequalification package with the Bureau of Office Engineer's Plans and Proposals Section. The package includes a confidential financial statement and an equipment and experience questionnaire. ALDOT's form says applications must be filed at least 14 days before a bid opening and renewed every year.

2. Read the Notice to Contractors

Each letting has a Notice to Contractors that lists every call by call number, with its federal or state project number, county and a description of the work. Our bids page reads it every day.

3. Bid electronically

ALDOT uses AASHTOWare Project Bids through Bid Express. Contractors who already bid elsewhere on Bid Express can get a compatible Digital ID and ask to bid with Alabama.

4. Bonds and licensing

Alabama public works contracts of $50,000 or more require a performance bond for 100% of the contract price and a payment bond of at least 50% (Ala. Code § 39-1-1). Work of $100,000 or more also needs an LBGC license; see our licensing guide.

5. Subcontractors and suppliers

Subs and suppliers usually quote the primes that pick up each proposal. The county hubs on this site list the licensed firms in each county.

Summary for general information, reviewed 2026-11-13. Not legal advice; check the source before relying on a deadline or threshold.