The money collected for the motor vehicle highway account fund and remaining after refunds and the payment of all expenses incurred in the collection of the money and after transferring three hundred twenty-five thousand dollars ($325,000) each month to the motor carrier regulation fund (IC 8-2.1-23), shall be allocated to and distributed among the department and subdivisions designated as follows:
All money so distributed to the several counties of the state shall constitute a special road fund for each of the respective counties and shall be under the exclusive supervision and direction of the board of county commissioners in the construction, reconstruction, maintenance, or repair of the county highways or bridges on such county highways within such county.
IC 8-14-1-3