Del. Code tit. 30, § 5119

All money received by the Department of Transportation under this chapter shall be deposited, not later than the close of the business day next following such receipt, to the credit of the Delaware Transportation Authority pursuant to Chapter 13 of Title 2, as amended, and any resolution or indenture of the Delaware Transportation Authority, authorizing the issuance of bonds to finance the costs of transportation facilities described in said title, is to be used to finance the costs of roads, highways and other transportation facilities and not to defray the expenses and obligations of the general government of the State.