The Coast Guard is establishing a temporary safety zone on the waters of the Upper Mississippi River from mile marker 497.6 to 497.2. The safety zone is needed to protect personnel, vessels, and the marine environment from potential hazards created by the Great River Tug Fest and Firework display. Entry of vessels or persons into the zone is prohibited unless specifically authorized by the Captain of the Port, Sector Upper Mississippi River, or a designated representative.
Source: Federal Register USCG
Link: Safety Zone; Upper Mississippi River, Mile Marker 497.6-497.2 LeClaire, IA and Port Byron, IL