Sec. 8. (a) The local bridge grant fund is established to:
(1) provide grants to counties for the construction and reconstruction of local bridges; and
(2) pay the costs of administering this chapter.
The fund shall be administered by the department.
(b) The treasurer of state shall invest the money in the fund not currently needed to meet the obligations of the fund in the same manner as other public funds may be invested. Interest that accrues from these investments shall be deposited in the fund.
(c) Money in the fund at the end of a fiscal year does not revert to the state general fund.