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  • Boat ramp at East Tailrace Recreation Area temporarily closed

    The boat ramp at the East Tailrace Recreation Area downstream of the Garrison Dam will be temporarily closed on Oct.10-12.

  • Final Phase: Implementation of Garrison Land Transfer meetings June 22 and 23

    The U.S. Army Corps of Engineers (Corps) and the Bureau of Indian Affairs (BIA) will host two public meetings in June to share and discuss the May 6, 2015 Memorandum of Agreement (MOA) between the Secretaries of the Department of the Army (Army) and Department of the Interior (Interior). The MOA sets forth the process for transferring administrative jurisdiction over certain Garrison Project lands no longer needed for the construction, maintenance and operation of the project to be held in trust for the Three Affiliated Tribes (Mandan, Hidatsa, Arikara Nation).

  • Corps reports above normal May runoff in the Missouri River Basin; drought conditions improve in upper basin

    The U.S. Army Corps of Engineers Missouri River Basin Water Management Division reports May runoff in the Missouri River Basin above Sioux City, Iowa, was 3.7 million acre feet (MAF), 110 percent of normal. The 2015 runoff forecast has increased to 22.5 MAF, 89 percent of normal. Average annual runoff is 25.2 MAF.

  • Temporary Closure of East Tailrace Recreation Area at Garrison Dam

    The road to the East Tailrace Recreation Area downstream of the Garrison Dam in Riverdale, N.D. will be closed on April 27 and April 28 between the hours of 7 a.m. and 7 p.m. This closure is required to allow sedimentation removal from the downstream boat ramp. The road to the East Tailrace will be closed during this time. Shore fishing at the East Tailrace will not be permitted. Shore fishing will remain available at the West Tailrace. Signs will be in place to direct the public. Access to the East Tailrace will reopen once the work is completed.

  • Corps decreases runoff forecast due to lower than normal mountain snowpack

    The U.S. Army Corps of Engineers Missouri River Basin Water Management Division is decreasing the annual runoff forecast for the Missouri River Basin above Sioux City, Iowa, to 20.3 million acre feet (MAF), which is 80 percent of normal and 4.9 MAF less than average. The decreased forecast is due to below normal mountain snowpack and the lack of plains snow in the basin.

  • February runoff higher, but 2015 Missouri River forecast still slightly below normal

    The U.S. Army Corps of Engineers Missouri River Basin Water Management Division reports runoff in the Missouri River Basin above Sioux City, Iowa was 2 million acre feet (MAF) during February, 186 percent of normal. The increased runoff was caused by above normal temperatures in the upper Missouri Basin that limited river ice build-up, and melted both plains and low elevation mountain snows. However, the 2015 runoff forecast in the same reach is 24.6 MAF, 97 percent of normal, and the March runoff forecast is about 1 MAF less than in February.

  • Reservoir system prepared for 2015 runoff season; previously stored flood waters evacuated

    Monthly Missouri River Water Management Report for February 2015. Updates on weather conditions, snow pack, reservoir levels and release forecast.

  • Corps increases releases due to cold temperatures; normal runoff forecast for 2015

    The U.S Army Corps of Engineers Missouri River Water Management Office increased releases from Gavins Point Dam from 17,000 to 20,000 cubic feet per second in late December and early January to offset water lost to ice formation in response to forecasts of cold temperatures.

  • Corps reduces releases from Missouri River dams due to lower runoff

    The U.S. Army Corps of Engineers Missouri River Basin Water Management Division is reducing releases from the four lower Missouri River dams because drier conditions in October have reduced runoff into the reservoir system, resulting in faster evacuation of stored flood water.

  • Missouri River Basin runoff remains above normal; Corps announces increase in navigation service level

    The U.S. Army Corps of Engineers Missouri River Basin Water Management Division reports runoff in the Missouri River Basin above Sioux City, Iowa for the month of June was 8.3 million acre feet, 153 percent of normal.