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  • Missouri River upper basin runoff continues below average forecast

    The updated 2025 calendar year runoff forecast for the Missouri River Basin above Sioux City, Iowa, continues to be below average. March runoff in the Missouri River Basin above Sioux City was 2.3 million acre-feet, 76% of average.

  • Prescribed burns at Oahe Dam scheduled for April 7

    The U.S. Army Corps of Engineers, in conjunction with the U.S. Forest Service and local volunteer fire departments, have scheduled prescribed burns on the Oahe Dam for April 7, 2025, that will cause traffic restrictions to Highway 1806 and Crest Road (Highway 204).

  • Virtual Missouri River water management public meetings set for April

    Two meetings to hear from the public about planned operation of the Missouri River Mainstem System will be held the first week in April.

  • Spring Missouri River public meetings to be virtual

    Virtual meetings on Missouri River Mainstem Reservoir system operations are in the process of being scheduled. Meeting dates and times will be announced as the details are finalized. In-person public meetings on Missouri River Mainstem Reservoir system operations, which were scheduled for March 19, 31 and April 2 have been canceled.

  • Gavins Point releases increasing for navigation flow support; Upper basin runoff stays below average

    The updated 2025 calendar year runoff forecast for the Missouri River Basin above Sioux City, Iowa, continues to be below average. February runoff in the Missouri River Basin above Sioux City was 1.0 million acre-feet, 91% of average. “Runoff into the reservoir system was slightly below average for the month of February and conditions across most of the basin remain dry,” said John Remus, chief of the U.S. Army Corps of Engineers’ Missouri River Basin Water Management Division.

  • Below average runoff continues for upper Missouri River Basin in 2025

    The updated 2025 calendar year runoff forecast for the Missouri River Basin above Sioux City, Iowa, continues to be below average. January runoff in the Missouri River Basin above Sioux City was 0.7 million acre-feet, 92% of average. Runoff was near or below average for most of the Missouri River Basin, and most of the upper basin had below-normal precipitation.

  • Below-average runoff and reservoir storage expected for the Missouri River Mainstem System in 2025

    For the 2024 calendar year, Missouri River basin runoff above Sioux City, Iowa totaled 23.3 million acre-feet, 91% of average. Dry conditions continue to affect the upper Missouri River Basin at the start of the 2025 calendar year, so the U.S. Army Corps of Engineers is forecasting below-average runoff into the mainstem reservoir system. For 2025, runoff in the Missouri River basin above Sioux City, Iowa is forecast to be 20.2 MAF, 79% of average.

  • Gavins Point Dam releases reduced to winter release rate

    The U.S. Army Corps of Engineers began reducing the Gavins Point releases to the winter release rate on Nov. 23 with the navigation flow support season ending on Dec. 1 at St. Louis. “Releases from Gavins Point Dam are being reduced to the 12,000 cubic feet per second winter release rate by mid-December,” said John Remus, Chief of the Missouri River Water Management Division. “We will closely monitor river conditions, and releases will be adjusted to the extent practical to lessen the impacts of river ice formation on stages in the lower river.” Releases were at 32,000 cfs prior to the reductions.

  • Maintenance project will close sections of Lake Oahe Project’s West Shore Mountain Bike Trail

    A U.S. Army Corps of Engineers maintenance project to stabilize the banks of the Oahe Dam’s emergency spillway will require sections of the Lake Oahe Project’s West Shore Mountain Bike Trail to close for the public’s safety beginning November 10.

  • Gavins Point Dam releases to be reduced to winter release rate

    Gavins Point Dam releases will be reduced in late November as flow support to navigation ends. Releases are currently 32,000 cubic feet per second.