Proceeds of the sale of bonds issued by the state for projects constructed under this chapter must be deposited in the state treasury to the credit of a special account designated for those purposes. Those proceeds must be expended only for the purposes enumerated in this chapter, for payment of the expense incurred in the issuance and sale of any such bonds, and to repay the motor vehicle fund for any sums advanced to pay the cost of surveys, location, design, development, right-of-way, and other activities related to the financing and construction of the bridge and its approaches.