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Old 10-31-2016   #1
 
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Grand Canyon, Colorado River Flows - November, December, January

Grand Canyon, Colorado River Flows - November with a High Flow, December, and January

The release volume from Glen Canyon Dam for November, 2016, will be 744,000 acre-feet. Hourly releases during November, 2016, are anticipated to fluctuate between approximately 6,500 cfs in the nighttime and 9,000 cfs in the daytime.

A High Flow Experiment will begin November 7. At 6:00 AM, releases from Glen Canyon Dam will be increased up to full power plant capacity (approximately 21,000 cfs). At 9:00 AM on November 7th, bypass tubes at Glen Canyon Dam will be opened, one every hour, and releases will continue to increase up to full power plant and bypass capacity (approximately 36,000 cfs) by midday on November 7th. Releases will be maintained at peak release for 4 days (96 hours) and then begin ramping back down. Releases will return to normal operations in the early morning hours of November 12th.

The anticipated release volume for December, 2016, is 900,000 acre-feet with daily fluctuations between approximately 11,000 cfs and 19,000 cfs.

The anticipated release volume for January, 2017, is 900,000 acre-feet . This will be confirmed in a subsequent notification toward the end of November.

Updated August 28, 2016

Paul Davidson, Hydraulic Engineer, Glen Canyon Dam

Bureau of Reclamation 125 S. State St. Salt Lake City, UT 84138 Ph: 801-524-3642


Posted by Grand Canyon Private Boaters Association, Grand Canyon Private Boaters Association | To ensure the ability for all to obtain an opportunity to experience a float trip through the Grand Canyon while protecting the resource.

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Old 11-04-2016   #2
 
Colo Springs, Colorado
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I hope sometime I can be so lucky to be in Grand Canyon when a high flow is happening.
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Old 11-04-2016   #3
 
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I'm curious, since it was mentioned somewhere in an earlier posting that the total annual MAF volume won't be affected by the HFE, (and the average predicted flows for Dec and Jan look ?close to normal or even high), if there will be some Low Flow Experiments later in the spring?

Jon
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