(509) 575-5848 ext 205
Released On: August 31, 2004
The purpose of the "flip-flop" operation is to encourage spring Chinook salmon to spawn at relatively low flows so that less water is required during the winter to keep the redds (egg nests) covered. This reduces any impact on irrigation water supply during the next season.
On September 7, as part of the "flip-flop" operation, Reclamation will install buoys around the Canal Wasteway 1146 drop to the Yakima River in the Ellensburg Canyon. The buoys system will remain in place for the duration of "flip-flop", which should last approximately 45 days. The system consists of floating buoys the size of 30-gallon drums that keep rafters and other recreationists out of the wasteway flows.
Beginning September 1, flows out of Cle Elum Dam are expected to gradually decrease from about 2,000 cubic-feet-per-second to about 250 cfs on or by September 10. Flows from Tieton Dam are expected to increase from about 600 cfs to over 1,500 cfs by September 10, depending upon irrigation demands.
Streamflow changes will continue during the Labor Day holiday. Streamflow information can be obtained by calling (509) 575-5854 or by viewing the Reclamation website at: http://www.usbr.gov/pn/hydromet/yakima/index.html.
DOI | Recreation.gov | USA.gov
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