OMAHA, Neb—As the flood control storage at Pipestem Reservoir nears evacuation, releases were reduced from 600 cubic feet per second (cfs) to 500 cfs on August 26. Jamestown Reservoir releases are 30 cfs, and the combined release of the two reservoirs is 530 cfs.
Jamestown Reservoir is currently at pool elevation 1430.7 feet, which is near the normal summer pool elevation of 1431 feet. The 30 cfs release is being made to match inflows and maintain a steady pool elevation. Pipestem Reservoir is currently at pool elevation 1449.4 feet with 5.4% of the flood pool occupied. Inflows are estimated at 80 cfs and the reservoir release is 500 cfs.
Pipestem Reservoir releases are scheduled for reduction to 400 cfs on Thursday, August 29 and 300 cfs on Friday, August 30. The 300 cfs release will be held over the Labor Day weekend. Further release reductions are expected the first two weeks of September.
Data from gages on the James River in North Dakota and South Dakota is available on the U.S. Geological Survey website at http://nd.water.usgs.gov/floodinfo/james.html. Daily reservoir information is provided by the Corps at http://www.nwd-mr.usace.army.mil/rcc/nwo/dailybull.pdf.
For additional information, contact the Omaha District Public Affairs office at (402)995-2417.
Release no. 20130827-001