Indiana Code Title 8. Utilities and Transportation § 8-16-2-19

Sec. 19. In the discharge of its duties under the provisions of this chapter, the department, as the agent and representative of the state of Indiana and in the name of the state of Indiana, is hereby authorized and empowered, both before and during the construction of any such bridge and after the completion thereof, to cooperate with and enter into a contract or contracts with such adjoining state, acting through any proper authorities or agents representing such adjoining state, to provide for the payment by such adjoining state of such part of the costs of the construction of such bridge, not exceeding one-half thereof, as may be agreed upon in such contract;  and in such contract to also agree upon and determine the time and manner of the making by such adjoining state of such payment or payments and all other details in connection therewith:  Provided, That any moneys paid to the state of Indiana by any such adjoining state as such adjoining state's agreed part of the cost of construction of any such bridge shall be applied by said state of Indiana to reimburse the state of Indiana and any county of the state of Indiana that shall have issued its bonds under the provisions of this chapter to aid in the construction of such bridge up to the amount in each case which is equal to the amount provided by said county for such purpose, plus interest thereon up to the time of repayment thereof, so far as the money so provided was actually used in and about the construction of such bridge;  and all moneys so received and applied to reimburse any such county as aforesaid shall be first applied by said county in payment of any of its said bonds issued as aforesaid under the provisions of this chapter and which are then still outstanding and unpaid, until such bonds and the interest accrued thereon shall be paid in full.