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  • Upper Mississippi River System Hydraulic Model Update Complete

    The U.S. Army Corps of Engineers, Rock Island, St. Paul and St. Louis Districts recently completed a seven-year effort to develop an updated, standardized hydraulic model for the Upper Mississippi River System, including the Illinois Waterway. The model can be used to evaluate and communicate the effects of floodplain modifications to provide better predictability and more consistent flood risk management for the Upper Mississippi River System.

  • USACE to host virtual, public meeting for Garrison Dam spillway evaluation

    OMAHA, Neb. – The U.S. Army Corps of Engineers, Omaha District welcomes the public to participate in a virtual, public scoping meeting on Thurs., June 2 to learn about the Garrison Dam Safety Modification Study. Garrison Dam is located near Riverdale, North Dakota.

  • Generations of LRD teammates compete in Best Sapper Competition

    LRD aide-de-camps of past and present come together to show their skills at the Best Sapper Competition at Fort Leonard Wood.

  • Corps of Engineers to host ribbon cutting at Lake Ashtabula visitor center

    ST. PAUL, Minn. – The U.S. Army Corps of Engineers, St. Paul District, will celebrate the reopening of its newly renovated visitor center at its Lake Ashtabula Dam and Recreation Area, as well as the site’s 70th anniversary, with a ribbon cutting ceremony May 18, at 11 a.m.

  • MKARNS Nav Notice SWL 22-15 Locks 8 & 9 Closed - High Flows

    MKARNS - Due to high flows on the McClellan-Kerr Arkansas River Navigation System, the Arthur V. Ormond Lock (No. 9) NM 176.9 and the Toad Suck Ferry Lock (No. 8) NM 155.9 are closed to traffic.

  • Rend Lake Dam Road Closed for Routine Inspection

    The U.S. Army Corps of Engineers at Rend Lake will close the Rend Lake Dam Road to all through traffic from 8 a.m. to 4 p.m. on Wednesday, May 11, 2022. Access to the South Marcum Recreation Area, Spillway Recreation Area, and the Dedication Lot on the east end of the Rend Lake Dam will remain open. Watch for closure signs at Sugar Creek parking lot and the west entrance to the Rend Lake Dam.

  • Temporary Closure of Maple Island and Low Water Access Area

    The US Army Corps of Engineers, Rivers Project Office, will temporarily close Maple Island in West Alton, MO as well as Low Water Access Area on Chouteau Island, Illinois to all vehicles, pedestrians and fishermen due to high water. These project areas will re-open when water levels recede at a date that is yet undetermined. Further information will be made available when these areas are again accessible for recreation.

  • Riverlands Migratory Bird Sanctuary to Host Walk for Wildlife 5K Benefitting Local Wildlife

    The U.S. Army Corps of Engineers, Rivers Project Office, is partnering with the Audubon Center at Riverlands and TreeHouse Wildlife Rehabilitation Center to host the second annual Walk for Wildlife event on Saturday, May 14 from 10 a.m. – 2 p.m. This fun-run style walk will benefit the TreeHouse Wildlife Center during the peak spring baby season while also supporting the conservation education team at the Audubon Center at Riverlands.

  • Three-Dimensional Underseepage Evaluation for Profit Island Vicinity Levee, North of Baton Rouge, Louisiana

    Abstract: This project developed a three-dimensional (3D) seepage model to evaluate efficiency of 84 relief wells and factors of safety (FoS) along the Profit Island vicinity levee (PIVL), north of Baton Rouge, Louisiana. The PIVL model was built based on US Geological Survey MODFLOW-USG. Moreover, a 3D seepage model of RocScience RS3 was also built for a specific study of relief well experiments conducted by the US Army Corps of Engineers in the 1930s and 1940s. The PIVL model was calibrated with measured piezometric head data and relief well flow rates in 1997. Six flood scenarios were conducted: the extreme flood (56 feet), design flood (52.4 feet), 1997 flood (50 feet), 2008 flood (49.22 feet), 2017 flood (45.55 feet), and 2018 flood (49.1 feet). The modeling results show that FoS are all above 1.5 given relief wells at the 1997 design condition. FoS calculated by the blanket theory are more conservative than those by the PIVL model because designed discharge rates were not observed in the field. In comparison with measured flow rates in 2008, the PIVL modeling result indicates potential clogging at many relief wells. New piezometric data and well discharge data are recommended to re-evaluate factors of safety.

  • USACE Vicksburg District to close Lindy C. Boggs Lock and Dam

    VICKSBURG, Miss. – The U.S. Army Corps of Engineers (USACE) Vicksburg District will temporarily close Lindy C. Boggs, Lock and Dam (L&D) to navigation on the Red River during two separate periods, Aug. 15 – Sept. 15 to dewater the upper gate and Oct. 1 – 30 to dewater the lower gate. The lock will temporarily reopen on approximately Sept. 16 and remain open for 15 days to allow traffic to pass. During the dewatering’s of the upper and lower gate bays, the district will make repairs, inspect the structure, and plan for future maintenance.