Ark Flows Extended? - Mountain Buzz
 



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Old 08-14-2006   #1
 
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Ark Flows Extended?

There was a rumor floating around in BV last weekend that the releases for the Ark were going to continue for a while after the 15th. Does anyone have any definitive info about this?

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Old 08-14-2006   #2
 
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Sadly that is not true. Releases are done as of tomorrow as scheduled. Pray for rain!
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Old 08-14-2006   #3
Len
 
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I was told by a ranger with arkensas headwaters recreation somthin somthin that the release that has been contributing to recent flows is only acounting for 150 cfs -- so that'll be the drop as of tomorrow.

Rain would bring it up for sure, and thats been pretty steady for the past few weekends.
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Old 08-14-2006   #4
 
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I talked to AHRA this morning.

They started ramping down those supplemental releases that we all love from about 175 cfs at noon, to drop to about 50 or 75 tomorrow & then phase out then next day. The Man says as long as the monsoons keep up, this equation applies:

1000 cfs - 175 cfs from AHRA agreement = 875 cfs for fun play in the canyons.

800 to 900 cfs in late August!

--Andy H.
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Old 08-14-2006   #5
 
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I don't get it - do you mean there will be water from the damn or just rain runoff?
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Old 08-14-2006   #6
 
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Andy H,
Something doesn't add up. You're starting with 1000cfs, I'm assuming you're looking at the Brown's gauge. But upstream, it's less than half of that. So over half the volume in Browns is comming from rain? But downstream, the levels drop to 800cfs. Where is that water going? I think the gauge for Brown's is screwed up from the storm that washed out Hecla Friday night.
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Old 08-14-2006   #7
 
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The chance of that 4000 cfs spike messing up the riverbed at the gage, and thus skewing the flow numbers is certainly real. Now that you mention it, if you look at the flow, the post-spike flow is a little too evenly skewed by just over 300 cfs.

Bummer it that's the case. That would mean that if the rains keep the flow up it'll only be around 500 cfs on Brown's. At least the flow regime may continue to increase as one goes downstream since the Ark would be picking up its flow from tributaries along the way not mainly supported by releases. This still may help out boating in the lower gorge.

I guess we should do like they do back East (and out on the plains) and pray for rain...

--Andy
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Old 08-15-2006   #8
 
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You can ride the bubble down on the 16th. It typically goes at 1 on Granite/Pine Creek, 2 on the Numbers, 3 for Fractions/Frog Rock/Milk Run, and 4 for Browns. I've caught some great last day boating here before, followed by super low paddles out. How much do you want it?

COUNT
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Old 08-15-2006   #9
 
Loveland, Colorado
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Howdy,
Just some numbers for you all on the Voluntary Flow Program this year--the numbers aren't quite final, yet, but pretty close.

Andy's information was, more or less, correct. We've been slowly scaling the Flow Program back. Yesterday, we were running 125 cfs down from Twin Lakes. Today, it is 50 cfs. And tomorrow, that will stop.

Pueblo Board of Water Works, however, has been moving some of their water early, sort of like the Flow Program does with Fryingpan-Arkansas Project water. They are running about 50 cfs down from Twin Lakes. We understand they will stop moving that water on Friday, August 18.

The nearly final numbers for this year's Flow Program show that we moved about 8600 acre-feet of project water down from Twin Lakes to Pueblo this summer (without the Flow Program, that water would stay in Twin Lakes until fall, or until water users called for it). The most we augmented the Arkansas flow at any one time was 250 cfs.

I echo the sentiments on rain. Whatever you all have been doing, it's been working along the upper Ark!

Best,
Kara
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