La. Roads, Bridges and Ferries § 48:1164
The board of highways shall be the successor in every way to the authorities from which the functions are transferred, and shall be the successor to all the obligations and debts of the authorities herein abolished. All funds dedicated to the payment of bonds issued for bridges, ferries, roads, facilities and improvements formerly under the control of the authorities herein abolished and whose powers, duties and functions are hereby transferred shall continue to be collected and dedicated to the payment of such bonds, and in like manner all other dedications and allocations of revenues and sources of revenues shall continue, unless otherwise hereafter provided by the constitution or laws, in the same manner, to the same extent and for the same purposes as were provided by law prior to the enactment of this part.
La. Roads, Bridges and Ferries § 48:1164