BUREAU OF RECLAMATION
ASPINALL UNIT RELEASES
October 14, 2015
Releases from Crystal Dam will be decreased from 1800 cfs to 1500 cfs on Thursday, October 15th. This reduction coincides with the beginning of the brown trout spawning period in the Gunnison River. The current content of Blue Mesa Reservoir is 696,000 acre-feet which is 84% full.
Flows in the lower Gunnison River are currently above the baseflow target of 1050 cfs. River flows are expected to stay above the baseflow target for the foreseeable future.
Pursuant to the Aspinall Unit Operations Record of Decision (ROD), the baseflow target in the lower Gunnison River, as measured at the Whitewater gage, is 1050 cfs for the remainder of the year.
Currently, diversions into the Gunnison Tunnel are around 950 cfs and flows in the Gunnison River through the Black Canyon are 850 cfs. After this release change Gunnison Tunnel diversions will be around 950 cfs and flows in the Gunnison River through the Black Canyon should be around 550 cfs. Current flow information is obtained from provisional data that may undergo revision subsequent to review.
This scheduled release change is subject to changes in river flows and weather conditions. For questions or concerns regarding these operations contact Erik Knight at (970) 248-0629 or e-mail at [email protected]