U.S. Army Corps of Engineers, Rock Island District, invites the public to the Mississippi River Visitor Center at Locks and Dam 15 in Rock Island, Illinois, to view hundreds of paddlers locking through during the annual Floatzilla paddle event, August 21. The Visitor Center will open at 9 a.m. and paddlers will be passing though the locks throughout the morning and early afternoon hours. Facemasks are required to be worn while inside the facility.