La. Stat. tit. 38 § 1667
All debts owing to and all property or contract rights, privileges, and immunities held or enjoyed by the old district or districts, or any sub-district thereof under former organization, shall be held and enjoyed by the new district or the respective sub-district thereof, when the district shall reorganize under the provisions of this Part. No right of action shall exist nor remedy be allowed against any reorganized drainage district, or sub-drainage district thereof by virtue of any contract or contracts made by or on behalf of any reorganized drainage district, or sub-drainage district thereof prior to its reorganization as herein provided for, which did not exist or was not allowed by statute against the drainage district or sub-drainage district prior to the time of its reorganization as herein provided for. Where any drainage district or districts have heretofore been reorganized under the provisions of this Part, and one or more of the sub-drainage districts thereof have been consolidated with each other or with other lands, and one plan for reclamation has been provided for and adopted therefor, taxes have been levied and bonds issued under the provisions of this Part, the plan for reclamation, the taxes and the bonds are hereby declared to be valid and legal, and binding on the reorganized drainage district. Each and every act of the drainage commissioners is hereby declared to have been done and performed in accordance with law, and the plan for reclamation, taxes, bonds, and acts are hereby validated and declared legal and binding upon the district and the landowners thereof.
La. R.S. § 38:1667