N.D. Cent. Code § 61-16.1-40: When dams constructed by federal agency under control of district

Any dam, dike, or other water control device or flood control project constructed by or with the assistance of any federal agency but which is not maintained or operated by any federal agency shall become the responsibility of the district where it is located. The district may take any action concerning this dam, dike, or other water control device it deems feasible or necessary.