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Western Colorado Area Office

Project Notices

Aspinall Unit
Crystal Reservoir Releases - Revised
September 29, 2014

Releases from Crystal Dam will be reduced from 1450 cfs to 1350 cfs on Tuesday, September 30th at 9:00 AM. The Uncompahgre Valley Water Users Association will be reducing diversions into the Gunnison Tunnel by 100 cfs on Tuesday morning. Flows in the lower Gunnison River are currently above the baseflow target of 1050 cfs. River flows have remained relatively high due to the September rains and flows are expected to stay above the September baseflow target at the new rate of release. 

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 September through December.

Currently, diversions into the Gunnison Tunnel are around 1050 cfs and flows in the Gunnison River through the Black Canyon are around 450 cfs. After this release change Gunnison Tunnel diversions will be around 950 cfs and flows in the Gunnison River through the Black Canyon should still be around 450 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 eknight@usbr.gov
Ryan Christianson at (970) 248-0652 or e-mail at rchristianson@usbr.gov