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Another update on Horsetooth Reservoir for you.
Bureau of Reclamation
Hi All,

Another update on Horsetooth Reservoir for you.

Today, we are sitting at an elevation of about 5391. At this time, all boat ramps are still in the water. We have about 85 cfs going out of the reservoir. This means it has slowed the drop of the reservoir's elevation. Earlier this week, the water level was going down about 2/3 of a foot a day. By this afternoon, it is dropping only very slightly.

Because we do not have any water coming into Horsetooth at this time, the water elevation is being determined by what is going out. Currently, the Horsetooth Feeder Canal (the canal that brings water in) is undergoing some regular fall maintenance. That work will be done the last weekend of September. We will be able to start bringing a little bit of water to Horestooth at that time, but not very much because there are still water demands downstream on the Big Thompson River.

Earlier this week, we projected that the reservoir will hit an elevation of 5385 by the last weekend of this month. If water demands return to around 400 cfs coming out of the reservoir, that will likely be the case. At 5385, the Satanka boat ramp and the southern-most ramp in South Bay are out of the water. The large six-lane boat ramp in South Bay, however, should be useable well into October.

This is the time of year, as we near the end of the water season, that it becomes even more complicated to project what the next couple of weeks will look like. As things change, I will do my best to keep you posted.

As always, feel free to call or e-mail me with any related questions or concerns.


Kara Lamb
Public Information
Bureau of Reclamation
(970) 962-4326