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  • U.S. Army Corps of Engineers to Celebrate Coralville Lake Facilities Upgrade with Ribbon-Cutting Ceremony July 10

    The U.S. Army Corps of Engineers, Rock Island District, will host a ribbon-cutting ceremony Friday, July 10, 2026, to celebrate the newly renovated Administration Building and Visitor Center, and newly constructed ranger equipment storage facility at Coralville Lake.

  • Partial Closure of West Overlook Campground at Coralville Lake

    The U.S. Army Corps of Engineers, Rock Island District, announces campsites 1-33 will be closed at the West Overlook Campground at Coralville Lake, June 8-19. The closure is needed to facilitate road replacement and repairs in the area. All other sites at West Overlook will remain open during construction. Visitors should use caution when traversing the area and obey all posted signs.

  • Roadwork Across Coralville Dam Begins July 24

    The U.S. Army Corps of Engineers, Rock Island District, will seal the roadway across Coralville Dam July 24-28. One lane will be open with intermittent closures from West Overlook Road, across the dam, and including portions of Prairie Du Chien Road. Delays should be expected through this area.

  • Roadway construction to begin April 10 at Coralville Lake

    The U.S. Army Corps of Engineers, Rock Island District, announces that asphalt roadway improvements will begin April 10 on the West Overlook Rd NE and Prairie Du Chien Rd NE. One lane of traffic will be available during the construction period, however temporary road closures may occur.

  • USACE warns of dangerous ice conditions at Coralville Lake

    The U.S. Army Corps of Engineers, Rock Island District, is warning the public to stay off the ice at Coralville Lake. Recent extreme cold has added ice to the surface of the water while decreasing inflows have caused unstable conditions.

  • Corps seeks public input on revised Coralville Lake Reservoir Master Plan

    The U.S. Army Corps of Engineers, Rock Island District is finalizing the Master Plan for Coralville Lake Reservoir and is seeking public input. A digital version of the plan and a video outlining changes are available for review at: https://www.mvr.usace.army.mil/Missions/Recreation/Coralville-Lake/.

  • Coralville Lake now operating under updated Water Control Plan

    The U.S. Army Corps of Engineers, Rock Island District, is now managing Coralville Lake under operational parameters outlined in a recently approved updated Water Control Plan. This plan was the result of a feasibility study initiated to update the Iowa River Basin Master Reservoir Regulation Manual. The Water Control Plan consists of operational parameters defining how, and when, water is stored and released. It includes a schedule of releases, conservation pool levels to be maintained during non-flood or drought conditions, and downstream water level constraints.

  • Corps to resume collection of recreation fees at Coralville Lake

    The U.S. Army Corps of Engineers, Rock Island District, will resume collection of recreational day use fees for boat ramps at Coralville Lake beginning April 1. Launching fees are $5 per day, per vehicle and can be paid with a credit or debit card via the self-serve machines at each boat ramp location. No cash or coins will be accepted at Mehaffey and West Overlook. Sandy Beach boat ramp will continue to be free of charge.

  • Virtual public open houses scheduled for Coralville Lake Water Control Plan update

    The U.S. Army Corps of Engineers Rock Island District is finalizing the Coralville Lake Water Control Plan and is seeking public input. Virtual open house sessions are scheduled Feb. 25 and March 4 at 5 p.m. and are open to anyone who would like to attend. Participants are encouraged to attend the event online as a visual presentation will be given and the chat feature of the online platform will be used for questions and answers. An audio-only option is available for those unable to attend on the web.

  • Recreators warned of unstable ice at Coralville Lake

    The U.S. Army Corps of Engineers Rock Island District is advising all visitors, including ice fishermen and snowmobilers, to stay off the ice at Coralville Lake and to use extreme caution along the shoreline. Recent fluctuations in temperatures and snow cover has made the ice unstable.