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RRFW Riverwire Glen Canyon Dam Operations Update

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RRFW Riverwire Glen Canyon Dam Operations Update
April 8, 2009

The Bureau of Reclamation has just announced the release volume from Glen Canyon Dam for April 2009 will be 600,000 acre-feet.

According to Rich Clayton, Glen Canyon Dam Hydraulic Engineer, this release will roughly equate to a daily high of 12,000 cubic feet per second and a daily low of 6,000 cubic feet per second.

Clayton notes hourly and daily average releases from Glen Canyon Dam for April 2009 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.

Clayton notes flows for May are anticipated to be similar to April, with anticipated release volume for May 2009 to be 600,000 acre-feet. In an e-mail announcement, Clayton noted this flow will be confirmed in a subsequent notification toward the end of this month.

Also of note to river runners is the announcement that beginning on May 21, 2009, releases from Glen Canyon Dam will be steady at 8,000 cfs for a period of approximately 5 days to provide the Glen Canyon Monitoring and Research Center an opportunity to conduct over flight data gathering.

Details regarding the specific hourly releases during this steady release period will follow in a future notification.

RRFW thanks Rick Clayton of the USBOR for his assistance in providing information for this notification.

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