The Bid Letting Unit is responsible for construction project advertisements, assisting with electronic bidding, fulfilling requests for eligibility to bid. Obtain a prequalification application packet.Download the required forms; or; Request an application packet online. Next, include the contact person's information, such as their email address. We make it easy to get a contract bid bond. Just click here to get our Michigan Bid Bond Application. Bid Information for upcoming road agency projects can be found here. Saginaw St., Room 203, Flint, MI, 48502. Bids must be in a sealed envelope clearly identifying the proposal name and proposal number. B. View current bid packages, bid packets, bid specifications for city projects and the forms that accompany them can be accessed via MITN Purchasing Group.