La. Stat. tit. 38 § 2830
The Department of Public Works of the State of Louisiana is hereby authorized to do and to perform all acts necessary to construct, lease, acquire in any manner, maintain, and operate dikes, dams, reservoirs, storage basins, locks, levees, flumes, conduits, spillways and any and all structures necessary, suitable or convenient for the purpose of the construction and creation of Black Bayou Lake and the dam creating such lake located on or near the point where State Route 109 presently crosses Black Bayou in Caddo Parish, Louisiana in accordance with appropriate plans of the engineers of the said Department of Public Works and the survey or surveys made or to be made by the Department in connection with the creation and construction of the said Black Bayou Lake.
La. R.S. § 38:2830