OMAHA, Neb. - Jamestown Reservoir flood storage is nearly evacuated with the pool elevation approaching the summer target of 1431 feet. Releases are being adjusted out of Jamestown and Pipestem Reservoirs accordingly.
Jamestown Reservoir releases were decreased from 500 cubic feet per second (cfs) to 400 cfs on Thursday, June 5. Jamestown Reservoir releases will be further decreased to approximately 300 cfs on Friday, June 6. The Pipestem Reservoir release will be increased from 5 cfs to approximately 50 cfs on Friday, June 6. The combined release will be 350 cfs through the weekend and the James River at Jamestown gage should drop approximately 0.9 feet. Next week Pipestem Reservoir releases will be increased to approximately 225 as the Jamestown Reservoir releases are reduced to match inflow.
Pipestem Reservoir is currently at pool elevation 1460.6 feet which results in 18.5 percent of the flood pool occupied. Inflows are currently 60 cfs. Jamestown Reservoir is currently at pool elevation 1431.2 feet which results in 0.3 percent of the flood pool occupied. Inflows are currently 190 cfs.
Throughout the summer Jamestown Reservoir releases will be adjusted to match the inflow in order to maintain the summer target pool elevation. Pipestem Reservoir flood storage will be evacuated in June, July and August with a release around 225 cfs. The combined release will vary over the summer as Jamestown Reservoir releases are adjusted. All releases may change depending on rain.
For additional information, contact the Omaha District Public Affairs Office at (402) 995-2417.
Release no. 20140605-001