(a) Except as otherwise provided by law, a county that enters into a contract for a transportation infrastructure project that involves construction or maintenance of roads and is funded by a grant under this subchapter shall:
(1) advertise for bids for the contract in a manner prescribed by law;
(2) receive competitive bids for the contract, publicly open the bids, and read aloud the names of the bidders and their bids; and
(3) award the contract to the lowest responsible bidder.
(b) In advertising for bids under Subsection (a), a county shall prepare a request for competitive bids that includes construction documents, estimated budget, project scope, estimated project completion date, and other information that a bidder may require to submit a bid.

(c) Not later than the seventh day after the date a contract described by Subsection (a) is awarded, the county that awarded the contract shall document the basis of its selection and shall make the evaluations public.