US Army Corps of Engineers
Omaha District

Missouri River Water Management News

Missouri River Water Management News Releases are available on the Northwestern Division website.RSS Feed

Release Reduction to Winter Levels at Jamestown, Pipestem Dams

Published Nov. 25, 2019

The U.S. Army Corps of Engineers will be stepping down releases from Jamestown and Pipestem Dams to expected winter levels by Dec. 4, 2019. 

Updated river ice forecasts indicate ice formation is likely in the LaMoure area in early December.  To mitigate the risk of freeze-up ice jams or other ice-related flooding, combined releases from the dams will be reduced by 200 cubic feet per second each day to expected winter levels.  The target combined release rate is 650 cfs.

 

 

Jamestown Dam Releases (cfs)

Pipestem Dam Releases (cfs)

Total Combined Release (cfs)

Tuesday, Nov. 26

1,000

1,000

2,000

Wednesday, Nov. 27

900

900

1,800

Thursday, Nov. 28

900

900

1,800

Friday, Nov. 29

800

800

1,600

Saturday, Nov. 30

700

700

1,400

Sunday, Dec. 1

600

600

1,200

Monday, Dec. 2

500

500

1,000

Tuesday, Dec. 3

400

400

800

Wednesday, Dec. 4

400

250

650

 

 

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 1441.3 feet, 28% into the flood pool, and is dropping.  The pool elevation peaked on Nov. 12 at 1442.0 feet, which was 31% into the flood pool.  Inflows are near 350 cfs, and releases are 1,100 cfs.

Pipestem Dam is currently at a pool elevation of 1464.2 feet, 24% into the flood pool, and is dropping.  The pool elevation peaked on Oct. 29 at 1475.0 feet, which was 43% into the flood pool.  Inflows are near 400 cfs, and releases are 1,100 cfs.

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


Release no. 19-138