State Infrastructure Bank

The Michigan State Infrastructure Bank (SIB) loan program provides loans to public entities for eligible transportation improvements. The goal of the program is to address customer financing needs in a timely and flexible fashion, accelerating the delivery of transportation projects, increasing financial viability by reducing borrowing costs, and attracting new public and private investment.

Qualified borrowers include any Act 51 eligible public entity (county road commissions, cities, villages, or MDOT). Eligible projects include highway, rail, or transit projects as defined in Title 23 U.S.C., Title 49 U.S.C., Public Act 51 of 1951, or Public Act 295 of 1976. MDOT will consider financing any stage of a proposed project, including planning, feasibility studies, design, right-of-way acquisition, and construction.

Applications are accepted year-round. Applicants must complete a brief loan application (form 1784). MDOT staff evaluates the application for feasibility, public support, creditworthiness, and financial capability. Approved projects proceed to a state/local agreement, with loans over $500,000 requiring State Administrative Board and State Transportation Commission approval.