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Windy Gap Project


Spillway at Windy Gap Reservoir

The Windy Gap Project is located just west of the town of Granby on Colorado's West Slope. The project consists of a diversion dam on the Colorado River,  a 445-acre-foot reservoir, a pumping plant, and a six-mile pipeline to Lake Granby.  The Windy Gap Project can deliver an average of 48,000 acre feet of water annually,  primarily between April and July.

During the spring runoff, Fraser River water is pumped from Windy Gap Reservoir to  Lake Granby, where it is stored for delivery through the Colorado-Big Thompson (C-BT) Project facilities to water users on the Front Range.

Windy Gap Firming
Windy Gap by the Numbers
Map of Windy Gap