Safety Zone; Big Sioux River From the Military Road Bridge North Sioux City to the Confluence of the Missouri River, SD

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The Coast Guard is establishing a temporary safety zone restricting navigation on the Big Sioux River from the Military Road Bridge in North Sioux City, South Dakota to the confluence of the Missouri River and extending the entire width of the river. During enforcement periods, vessels must obtain Captain of the Port authorization to enter the safety zone. This temporary safety zone is needed to protect the general public, vessels and tows, and the levee system from destruction, loss or injury due to hazards associated with rising flood water. Operation in this zone is restricted unless specifically authorized by the Captain of the Port Sector Upper Mississippi River or a designated representative.