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Lake Estes, Big T and Carter this weekend
Kara Lamb, USBR
Hi all,

The warm weather is starting to bring down that high elevation snow. We have seen snowmelt inflows to the Big Thompson River start to tick back up again.

As a result, we've once again curtailed Colorado-Big Thompson Project diversions from the West Slope through the Adams Tunnel. We are running some of that Big Thompson River water through Olympus Tunnel, through power generation, Pinewood Reservoir, and then pumping it up to Carter Lake.

However, Carter Lake is about to hit full for the second time this season tomorrow, Saturday. Consequently, this means we will be turning the pump to Carter off tomorrow afternoon or evening.

Meanwhile, Horsetooth Reservoir is still full. So, the water that was going to Carter will now be coming back to the Big Thompson River at the mouth of the canyon via the concrete chute. Flows down the chute have been steadily increasing since yesterday. They will continue to go up all weekend. By late Sunday night or early Monday morning, they should be around 320 cfs.

Pinewood Reservoir, which has been dropping as the pump to Carter has been running, will see water levels start coming back up late Saturday night.

Despite all these changes elsewhere on the C-BT, outflow from the Big Thompson River and Lake Estes through Olympus Dam to the top of the canyon will remain around 125 cfs.

And that should wrap up operations for the weekend. As always, please feel free to contact me with any related questions.

Have a great weekend,

Kara Lamb
Public Information Officer
Bureau of Reclamation
Eastern Colorado Area Office
(970) 962-4326