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Category: Northwestern Division, U.S. Army Corps of Engineers
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  • Federal water managers take precautions by adjusting water levels behind John Day dam as precipitation mounts

    Federal water managers at the U.S. Army Corps of Engineers (USACE) will adjust water levels behind John Day Dam (Lake Umatilla), in north-central Oregon, this week to prepare for another round of heavy precipitation in the Columbia River Basin. This will be the third atmospheric river storm event within the last two weeks.

  • Gavins Point Dam releases reduced to winter release rate

    Reduced releases from the Gavins Point Dam to the winter release rate on began 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 26,000 cfs prior to the reductions.

  • Virtual Missouri River fall public meeting in-lieu of canceled meetings

    In-person public meetings on Missouri River Mainstem Reservoir system operations, which were scheduled for Monday, Oct. 27; Monday, Nov. 3; and Tuesday, Nov. 4 have been canceled. A virtual meeting on Missouri River Mainstem Reservoir system operations is scheduled for Thursday, Oct. 30 to present the draft 2025-2026 Annual Operating Plan.

  • Heat wave spikes temps and hydropower demand

    With regional temperatures spiking during this week’s heat wave, the demand for electricity follows. As people turn on fans, air conditioners and other cooling devices, power providers rely on hydropower because dams can bring turbines on quickly, to add immediate supply and provide grid stability.

  • Below normal runoff continues in the Upper Missouri Basin

    July runoff in the Missouri River Basin above Sioux City, Iowa was 2.0 million acre-feet (MAF), 62% of average. Runoff was below-average in the Fort Peck and Garrison reaches with average to above-average runoff in the lower four reaches. The annual runoff forecast above Sioux City, Iowa is 19.2 MAF, 75% of average.

  • June runoff much below average; Navigation flow support decreased slightly after System storage check

    June runoff in the Missouri River Basin above Sioux City, Iowa was 3.3 million acre-feet, 60% of average. The updated 2025 calendar year runoff forecast for the Missouri River Basin above Sioux City, Iowa, continues to be below average.

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