The Coast Guard will enforce a security zone for all navigable waters within 350 yards off the Right Descending Bank (RDB) of the Lower Mississippi River (LMR) Mile Marker (MM) 96.8 to MM 97.5, Above Head of Passes (AHP), New Orleans, LA. This security zone is necessary to provide security and protection for visiting personnel during the events related to the Gretna Heritage Festival. No person or vessel may enter this security zone unless authorized by the Captain of the Port New Orleans (COTP) or a designated representative.
Source: Federal Register USCG
Link: Security Zone; Lower Mississippi River, Mile Marker 94 to 97 Above Head of Passes, New Orleans, LA-Gretna Heritage Festival