The Bureau of Reclamation will begin releasing additional water from Boysen Reservoir causing flows in the river below Boysen Dam to fluctuate from 925 cubic feet per second (cfs) to 5000 cfs. Beginning Tuesday, March 24 at 2 a.m., flows released from the dam will increase to 3000 cfs and further increased to 5000 cfs at approximately 7 a.m. Flows will remain at 5000 cfs for ten hours before being gradually reduced to 925 cfs by approximately 11 a.m. March 25.
The department advises the public to be aware of the potential dangers related to flushing flows. Sportsmen wading or floating the river during this time should consider the fluctuating water levels. Areas that can be waded effectively at 900 cfs may not be accessible at 5000cfs.
The Wyoming Game and Fish Department has requested the flushing flow in order to clean fine sediments from fish spawning habitats and to increase production of invertebrates that fish depend on for food. Flushing flows have been a regular occurrence on the river since 2005 and have dramatically improved wild rainbow trout recruitment in the Bighorn River. For more information, contact Sam Hochhalter at 307-527-7125.