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Old 02-23-2015   #1
GCPBA's Avatar
Flagstaff, Arizona
Paddling Since: 1869
Join Date: Oct 2009
Posts: 122
Grand Canyon CO River March flow confirmed, April & May should be....

February 23, 2015

This notification confirms that the release volume from Glen Canyon Dam for March 2015 will be 650,000 acre-feet. Hourly and daily average releases from Glen Canyon Dam for March 2015 will be scheduled through Western Area Power Administration to be consistent with the Glen Canyon Dam Operating Criteria (Federal Register, Volume 62, No. 41, March 3, 1997) and to also achieve, as nearly as is practicable, this monthly volume. Hourly releases during March 2015 are anticipated to fluctuate between approximately 7,250 cfs in the nighttime and approximately 13,250 cfs in the daytime.

We anticipate the release volume for April 2015 will be 600,000 acre-feet with fluctuations between approximately 7,500 cfs and 13,500 cfs. The anticipated release volume for May 2015 is 700,000 acre-feet with fluctuations between approximately 8,500 cfs and 14,500 cfs. This will be confirmed in a subsequent notification toward the end of March.

This notification supersedes all previously issued notifications and is current until a new notification is issued. All times identified in this notification are local time (Mountain Standard Time) and not hour ending.

If there are any concerns or questions regarding these operations, I can be reached at 801-524-3635. Your cooperation is greatly appreciated.


Katrina Grantz
Hydraulic Engineer/Glen Canyon Dam
Upper Colorado Region
Bureau of Reclamation

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Old 02-23-2015   #2
DesertRatonIce's Avatar
Buena Vista, Colorado
Paddling Since: 1982
Join Date: Jan 2015
Posts: 217
Thanks for passing along the info. I got a trip in April. It's great to know projected flows.

Woke up this morning at 10:13.
A hole so big, it sucked the leaves off the tree.
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