33 U.S.C. § 562a : US Code - Section 562A: Project depths for national defense purposes; waterways for general commerce

Search 33 U.S.C. § 562a : US Code - Section 562A: Project depths for national defense purposes; waterways for general commerce

The Chief of Engineers, under the direction of the Secretary of
the Army, is hereby authorized to maintain authorized river and
harbor projects in excess of authorized project depths where such
excess depths have been provided by the United States for defense
purposes and whenever the Chief of Engineers determines that such
waterways also serve essential needs of general commerce.