Overseeing bid management, contract creation, and project initiation has never been this easy. Make Informed Decisions From Real-Time Data.Each bidder is required to acknowledge receipt of an addendum issued for a specific project. I just open my proposals with "Hi there. " Then I usually ask a clarifying question about the work. TxDOT must qualify bidders to become eligible to bid or to receive a bid proposal on a construction or maintenance project. Annually (each September) DIR updates the procurement schedule of solicitation opportunities of all planned procurements for the coming fiscal year. Contract opportunities are procurement notices from federal contracting offices.