As part of Northern Water’s Windy Gap Firming Project, Chimney Hollow Reservoir will improve the reliability of the existing Windy Gap Project. The Windy Gap Project has been delivering water since 1985 through a diversion dam on the Colorado River, a 445-acre-foot reservoir, a pumping plant, and a pipeline from Lake Granby. With a changing climate and growing population, the region will benefit from Chimney Hollow’s water supply during dry years. The reservoir will enable Northern Water to store up to 90,000 acre-feet of water, with an annual yield of 30,000-acre feet.
