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  • Corps reducing outflows due to recent rains

    In response to recent heavy rains and runoff in southeastern South Dakota and northwestern Iowa, releases from Fort Randall and Gavins Point dams will be reduced, the U.S. Army Corps of Engineers announced today.

  • Columbia-Snake winter navigation lock schedule begins Sept. 15

    COLUMBIA-SNAKE RIVERS, Ore. & Wash. -- Beginning Saturday, Sept. 15, recreational boaters can lock past U.S. Army Corps of Engineers dams on the lower Snake and Columbia rivers almost any time during daylight hours, according to Corps navigation planners. Commercial vessels will have precedence, and recreational vessels may be allowed to lock through with commercial craft at the discretion of the lockmaster.

  • Higher-than-average releases maintained to prepare for 2019 Missouri River runoff

    Higher-than-average releases from all Missouri River Mainstem System dams, including Gavins Point, will continue through the fall, the U.S. Army Corps of Engineers announced today. “Due to this year’s high runoff and the water currently being stored in the reservoirs, Gavins Point releases will remain near 58,000 [cubic feet per second] for the remainder of the navigation season to ensure evacuation of all stored flood waters prior to the 2019 runoff season,” said John Remus, chief of the Missouri River Basin Water Management Division.

  • Releases from Gavins Point Dam reduced to address heavy rain

    Releases from Gavins Point Dam on the Missouri River were reduced from 58,000 cubic feet per second to 52,000 cfs to address heavy rainfall in western Iowa and eastern Nebraska. A weather system that has already seen rainfall totals from 2 to 6 inches across eastern Nebraska and western Iowa is causing increased river stages along the Missouri River and tributaries in the area.

  • Higher than average releases from Missouri River Mainstem projects to continue through the fall

    Higher-than-average releases from all System projects, including Gavins Point, will continue through the summer and fall. “Due to the water currently being stored in the reservoirs and the higher-than-average runoff being forecast in the Missouri River Basin above Sioux City, Iowa, Gavins Point releases will remain near 58,000 cfs for the remainder of the navigation season to ensure evacuation of all stored flood waters prior to next year’s runoff season,” said John Remus, Chief of the Missouri River Basin Water Management Division. The 2018 runoff forecast in the Missouri River Basin above Sioux City, Iowa, is 39.8 million acre feet (MAF), 157 percent of average according to the Corps. July runoff was 5.1 MAF, 155 percent of normal.

  • Spillway flows at Garrison Dam scheduled for Monday, Aug. 6

    As releases decline from Garrison Dam, releases will be transferred from the regulating tunnels to the spillway on Monday, Aug. 6 with the spillway gates opening at about 11 a.m. The release capacity of the powerhouse is about 41,000 cfs so releases from the spillway will be about 9,000 cfs with 9 of 28 the spillway gates opening.

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