Projects

The Colorado-Big Thompson Project collects, stores and delivers more than 200,000 acre-feet of supplemental water each year. Melting snowpack in the Colorado River headwaters on the West Slope is diverted through a tunnel beneath the Continental Divide to more than 1.1 million residents and 550,000 acres of irrigated farmland in Northeastern Colorado.

Due to rapid population growth during the late 1960s, six Front Range communities formed the Northern Water Municipal Subdistrict in July 1970 to plan, finance, build and operate the Windy Gap Project. Windy Gap Project construction began in July 1981, was completed in 1985 and began delivering water to Municipal Subdistrict participants that same year.

Through the building of two new reservoirs, NISP will supply water providers with up to 40,000 acre-feet of new, reliable water supplies.

As part of the Windy Gap Firming Project, Chimney Hollow Reservoir will provide water supplies for 12 water providers.