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  • USACE completes FUSRAP remediation at Iowa Army Ammunition Plant

    The U.S. Army Corps of Engineers, St. Louis District, has completed remediation of depleted uranium contamination at the Iowa Army Ammunition Plant, marking a major milestone in a two-decade Formerly Utilized Sites Remedial Action Program project. The project addressed depleted uranium contamination associated with activities conducted during the nation's early atomic energy program. The goal of the cleanup was to protect public health and welfare by excavating contaminated soil, physically treating the material and disposing of contaminated material at approved off-site facilities.

  • U.S. Army Corps of Engineers Recognizes National Hydropower Day and Highlights Public-Private Energy Partnerships

    The U.S. Army Corps of Engineers (USACE) is proud to recognize National Hydropower Day, Aug. 24. For more than 140 years, the USACE Hydropower Program has been providing the nation with ready, reliable, and resilient energy. USACE is the largest owner and operator of hydroelectric power plants in the United States, generating more than 25% of the nation’s hydropower and ranking among the nation’s top 10 power producers overall.

  • Halloween Walk Ticket Sales

    August 9, 2025, Mark Twain Lake – The U.S. Army Corps of Engineers at Mark Twain Lake are announcing that the Indian Creek Halloween Walk admittance will be by advance tickets only.  Tickets are $10.00 per vehicle. The Indian Creek Halloween Walk for 2025, is scheduled for Friday, October 17, 2025 (5 p.m. to 9 p.m.) and Saturday, October 18, 2025 (4 p.m. to 9 p.m.).

  • USACE releases draft Environmental Assessment for Little Grassy Lake Dam Safety Modification Study

    The U.S. Army Corps of Engineers, St. Louis District, on behalf of the U.S. Fish and Wildlife Service has released the draft Environmental Assessment for the Little Grassy Lake Dam Safety Modification Study for a 30-day public review and comment period starting July 28. The draft Environmental Assessment evaluates alternatives to reduce dam safety risks at Little Grassy Lake Dam while considering potential effects on the environment, cultural resources, recreation and the surrounding community. The study will help identify a Risk Management Plan that effectively reduces unacceptable dam safety risks while balancing environmental and public interests.

  • Army Corps of Engineers celebrates World Ranger Day July 31

    The U.S. Army Corps of Engineers will recognize World Ranger Day July 31. This annual worldwide celebration commemorates rangers killed or injured in the line of duty and highlights our rangers' vital roles in environmental stewardship, public safety and managing some of the nation's premier water-based recreation areas.

  • 34th Annual Cruz-In the Dam Car Show Returns to Carlyle Lake

    Car enthusiasts from across the region are invited to the 34th Annual Cruz-In the Dam Car Show Nationals on Friday, August 14, 2026, at Mariner's Village Resort in the Dam West Recreation Area in Carlyle, Illinois. More than 400 vehicles from throughout southern Illinois are expected to be on display, including custom cars, Pro Street builds, 4x4s, trucks, street machines, race cars, motorcycles, and more.

  • Rend Lake Dam Road temporarily closed July 22

    The Rend Lake Dam Road will be temporarily closed to all traffic on Wednesday, July 22 beginning at 7 a.m. through 5 p.m. for a routine safety inspection.

  • U.S. Army Corps of Engineers gauge website outage affects St. Louis District water level information

    The U.S. Army Corps of Engineers, St. Louis District, is responding to a widespread outage affecting the Mississippi River Basin Gauge Table website.  Water level information for reservoirs, lakes, rivers, locks and dams, and other monitored locations is temporarily unavailable for the St. Louis District. U.S. Army Corps of Engineers information technology personnel are working to identify the cause of the outage and restore service. The district will notify the public when the website is fully operational.

  • U.S. Army Corps of Engineers waives day use fees at recreation areas in observance of Army Corps of Engineers’ Birthday

    The U.S. Army Corps of Engineers announced that it will waive day use fees at its more than 2,800 USACE-operated recreation areas nationwide in observance of its birthday, June 16. The waiver covers fees for boat launch ramps and swimming beaches. The waiver does not apply to camping and camping-related services, or fees for specialized facilities (group picnic shelters) and events. Other agencies that manage recreation areas on USACE lands are encouraged, but not required, to offer the waiver in the areas that they manage.

  • Register for Kid’s Fishing Day on June 6, 2026

    MARK TWAIN LAKE, Mo – The U.S. Army Corps of Engineers, at Mark Twain Lake, will host Kid’s Fishing Day on June 6, from 8 a.m. to 12 p.m. for youth between the ages of five and 12 in celebration of Missouri Free Fishing Days June 6 and 7.