La. Roads, Bridges and Ferries § 48:1161
In order to merge and consolidate into one department the duties and functions that are of a similar nature or character, under authority of Section 32 of Article III of the Constitution of Louisiana of 1921, the Ascension-St. James Bridge and Ferry Authority, the Iberville Parish Bridge and Ferry Authority, the Pointe Coupee-West Feliciana Bridge and Ferry Authority, and the St. Charles-St. John the Baptist Bridge and Ferry Authority are hereby abolished, effective January 1, 1973, and all of the powers, duties, functions, immunities, restrictions and exemptions from taxation under any laws, and particularly under the effective provisions of Act 7 of 1952, Act 526 of 1958, Act 555 of 1966, Act 413 of 1962, Act 413 of 1966, Act 269 of 1968, Act 290 of 1968, Act 57 of 1969 and R.S. 48:1151-1158 are transferred to the State Board of Highways and Department of Highways, effective January 1, 1973, and after said date the board of highways shall have and exercise all of the executive and administrative functions provided for by the constitution or laws with respect to the authorities herein abolished and with respect to the officers and members of such authorities.
La. Roads, Bridges and Ferries § 48:1161