Upon execution of an agreement under AS 35.15.080(a), state funds appropriated for a public works project that is the subject of the agreement shall be transferred to a special account in the state treasury. A municipality administering the project under the agreement may draw on the account for costs of the project, under fiscal control of the department. If an agreement provides for joint or cooperative administration of the project, payment of costs shall be made to the party incurring the costs.