US Army Corps of Engineers
Omaha District

Missouri River Water Management News

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Winter release levels increased at Jamestown Dam

Published Dec. 2, 2019

The Corps of Engineers announces release schedule for Jamestown and Pipestem dams for Dec. 2 through Dec. 4.

Updated reservoir forecasts indicate that winter releases of 450 cubic feet per second are required from Jamestown Dam. The table below shows the updated release reduction schedule for Jamestown and Pipestem Dams to winter levels. The new target combined release rate is 700 cfs.

 

Jamestown Dam Releases (cfs)

Pipestem Dam Releases (cfs)

Total Combined Release (cfs)

Monday, Dec. 2

500

500

1,000

Tuesday, Dec. 3

450

400

850

Wednesday, Dec. 4

450

250

700

 

 

The Corps of Engineers will operate to minimize the risk of ice-related flooding, and adjustments to the releases will be made as needed.

Jamestown Dam is currently at a pool elevation of 1440.7 feet, 25% into the flood pool, and is dropping. The pool elevation peaked Nov. 12 at 1442.0 feet, which was 31% into the flood pool. Inflows are near 500 cfs, and releases are 500 cfs.

Pipestem Dam is currently at a pool elevation of 1460.2 feet, 18% into the flood pool, and is dropping. The pool elevation peaked Oct. 29 at 1475.0 feet, which was 43% into the flood pool. Inflows are near 300 cfs, and releases are 500 cfs.

The Corps of Engineers is coordinating with relevant agencies in North and South Dakota.


Release no. 19-140