Roads Development Amendment

The Legislature shall have power to authorize the issuing and selling of state bonds not exceeding in the aggregate three hundred fifty million dollars. The proceeds of said bonds hereby authorized to be issued and sold shall be used and appropriated solely for the building and construction of free state roads and highways provided for by this constitution and the laws enacted thereunder. When a bond issue as aforesaid is authorized, the Legislature shall, at the same time provide for the collection of an annual state tax sufficient to pay as it may accrue the interest on such bonds and the principal thereof within and not exceeding twenty-five years. Such tax shall be levied in any year only to the extent that the moneys in the state road fund irrevocably set aside and appropriated for and applied to the payment of the interest on and principal of said bonds becoming due and payable in such year are insufficient therefor.