The proceeds of all bonds, other than refunding bonds, issued by the corporation, remaining after paying the expenses of their issuance, shall be turned into the treasury, shall be carried in a special industrial access road and bridge construction account, and shall be available to be drawn upon by the corporation, upon the approval of the State Department of Transportation and the Governor, but solely for the purpose of constructing, reconstructing, and relocating industrial access roads and bridges and work incidental or related thereto, including the acquisition of property necessary therefor. Moneys on deposit in the industrial access road and bridge construction account shall be invested by the State Treasurer at the direction of the corporation in permitted investments which mature at such time or times as the corporation shall direct. Net interest income earned from the investment of bond proceeds deposited into the industrial access road and bridge construction account shall be deposited as received by the State Treasurer into the state Public Road and Bridge Fund to be used for state highway purposes.

The proceeds from the sale of any refunding bonds of the corporation remaining after paying the expenses of their issuance shall be used only for the purpose of refunding outstanding bonds of the corporation and of paying any premium that may be necessary to be paid in order to redeem or retire the bonds to be refunded. Bonds refunded prior to their maturity with the proceeds of refunding bonds shall be defeased if the corporation, in its proceedings regarding issuance of the refunding bonds provides for and establishes a trust or escrow fund comprised of moneys or government securities, or both, sufficient to pay, when due, the entire principal of, premium, if any, and interest on the refunded bonds; provided, that such government securities shall not be subject to redemption prior to their maturities other than at the option of the holder thereof. Upon the establishment of such a trust or escrow fund, the refunded bonds shall no longer be deemed to be outstanding, shall no longer be secured by the funds pledged therefor in Section 23-6-10 of this chapter, shall no longer be obligations of the corporation and shall be secured solely by and payable from moneys and government securities deposited in such trust or escrow fund. All contracts of the corporation for the construction, reconstruction, and relocation of industrial access roads and bridges, work incidental or related thereto, and the acquisition of property necessary therefor, shall be in writing, shall be subject to the rules and regulations, and shall be let under the supervision of the State Department of Transportation, and shall be subject to approval by the Governor and by the State Department of Transportation. All work provided for in any such contract shall be supervised by the State Department of Transportation. All persons engaged in the supervision or performance of any such work of construction, reconstruction, or relocation that may be done by the corporation without the award of a contract therefor shall be employees of the State Department of Transportation. Any property acquired by the corporation by purchase, condemnation, or otherwise shall be acquired in the name of the state or shall be forthwith conveyed to the state. All roads and bridges constructed by the corporation shall constitute part of the public highway and street system of the state.

There is hereby appropriated so much of the bond proceeds as may be necessary for the construction of industrial access roads and bridges in the state.