IOWA CITY, Iowa - All public day use boat ramps managed by the U.S. Army Corps of Engineers on Coralville Lake remain closed at this time. This includes the Curtis Bridge, Mehaffey Bridge, Sandy Beach, Sugar Bottom, and West Overlook boat ramps. Lake MacBride Boat Ramp which is managed by the Iowa Department of Natural Resources also remains closed. West Overlook Recreation Area campsites 61-89 and Sugar Bottom Recreation Area campsites 156-181 and 192-214 as well as the campground boat ramp at Sugar Bottom also remain closed.