Navajo Release Change - San Juan River - Mountain Buzz
 



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Old 08-27-2012   #1
 
Durango, Colorado
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Navajo Release Change - San Juan River

BUREAU OF RECLAMATION
NAVAJO RESERVOIR RELEASE
August 27, 2012
SENT VIA FAX AND E-MAIL

As a result of increased streamflows in the San Juan River Basin, the Bureau of Reclamation will be decreasing the release from Navajo Reservoir from 1000 cubic feet per second (cfs) to 900 cfs on August 28, 2012 at approximately 8:00 am. Releases are made for the authorized purposes of the Navajo Unit, and to attempt to maintain a target base flow through the endangered fish critical habitat reach of the San Juan River (Farmington to Lake Powell).

The San Juan River Basin Recovery Implementation Program recommends a target base flow of between 500 cfs and 1,000 cfs through the critical habitat area. The target base flow is calculated as the weekly average of gaged flows throughout the critical habitat area.

This scheduled release change is subject to changes in river flows and weather conditions. If you have any questions, please contact Ryan Christianson at 970- 385-6590 or e-mail him at [email protected].



Susan Novak Behery, P.E.
Hydrologic Engineer
Reclamation
Western Colorado Area Office
[email protected]
970-385-6560

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Old 08-27-2012   #2
 
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Buena Vista, Colorado
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Thanks for the continued updates Susan. I have a trip coming up the 3rd weekend in September and it's good to see flows have still been maintained in the 800-1000 range. I know you can't guarantee anything, but hopefully they hold.
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Old 08-27-2012   #3
 
Durango, Colorado
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Keep in mind that the release from the reservoir is not necessarily what reaches Bluff. In fact, usually the amount of flow that actually makes it to Bluff after diversions, evaporation, etc. is much lower, even after the addition of the Animas River. Right now it's looking like 450-550 cfs will be maintained at Bluff around September 3rd, based on current forecasted conditions, although a lot could change between now and then.
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Old 08-27-2012   #4
 
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So what gauge should I be looking at for an accurate account of what is in the permitted stretch? Thanks.
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Old 08-27-2012   #5
 
BV, CO
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I think this is what you want, Logan.

San Juan at Four Corners.

USGS Current Conditions for USGS 09371010 SAN JUAN RIVER AT FOUR CORNERS, CO
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Old 08-27-2012   #6
 
Durango, Colorado
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Yes, the San Juan at Four Corners or the San Juan at Bluff, if you're putting in lower.
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Old 08-28-2012   #7
 
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Breckenridge, CO, Colorado
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Logan, I was looking on AW's site for a gauge. It was reading 550 last week
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Old 08-29-2012   #8
 
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Quote:
Originally Posted by paddleprincess View Post
Logan, I was looking on AW's site for a gauge. It was reading 550 last week
Look at the gauge that Phil posted the link to Jo.....and it could end up being 500-600 when we launch on the 20th, but that is still enough water to float and enjoy.
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Old 08-31-2012   #9
 
Durango, Colorado
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And we're already going back up to 1000 cfs since it's looking a little low down there at Bluff. Call or email if you have any questions!

Susan Novak Behery, P.E.
Hydrologic Engineer
Reclamation
Western Colorado Area Office
[email protected]
970-385-6560





BUREAU OF RECLAMATION
NAVAJO RESERVOIR RELEASES
August 31, 2012
SENT VIA FAX AND E-MAIL

As a result of low forecasted river flows in the critical habitat area of the San Juan River Basin, the Bureau of Reclamation has scheduled an increase in the release from Navajo Reservoir from 900 to 1000 cubic feet per second (cfs) on Saturday, September 1, 2012, beginning at 4:00 a.m. Releases are made for the authorized purposes of the Navajo Unit, and to attempt to maintain a target base flow through the endangered fish critical habitat reach of the San Juan River (Farmington to Lake Powell).

The San Juan River Basin Recovery Implementation Program recommends a target base flow of between 500 cfs and 1,000 cfs through the critical habitat area. The target base flow is calculated as the weekly average of gaged flows throughout the critical habitat area.

This scheduled release change is subject to changes in river flows and weather conditions. If you have any questions, please contact Ryan Christianson at 970- 385-6590 or e-mail him at [email protected].


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Old 09-01-2012   #10
 
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I can never read the thread the rangers post. Must be the app on the I pad....ok long an I will check it out. Hope the wind isn't blowing
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