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Old 11-20-2012   #11
rivermanryan's Avatar
Durango, Colorado
Paddling Since: 1999
Join Date: Oct 2003
Posts: 580
Originally Posted by spwitherspoon View Post
I agree that without dams, we couldnt have flows of 700 cfs with out dams. But, is that a good thing? We would also get much higher peak flows with out dams. Tamarisk and Russian Olive might have a harder time with higher peak flows too.

Since October the average inflow into Navajo has been 80 cfs! The Animas is running low, but reaching the confluence in Farmington. The Animas is likely artificially high due to the irrigation return flows that are still working their way downstream. My guess is that the natural flow of the San Juan below Farmington would be in the 300-400 cfs range.

The Russian Olives are one of the biggest challenges for the San Juan River habitat right now. We do spring peak releases out of Navajo to mimic natural spring runoff, but it appears it is not enough to counter the bank armor of the Russian olives. New ideas for removal are being tossed around, so that the spring peak releases can do what they are intended to do.

Very interesting and challenging subject, and one of my favorite parts of my job.

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