Federal court rules in favor of Windy Gap Firming Project
A United States District Court judge has ruled in favor of the Windy Gap Firming Project, clearing the way for construction of Chimney Hollow Reservoir near Berthoud. This ruling should also make it possible to move forward with environmental mitigation and enhancements related to the project, including construction of the Colorado River Connectivity Channel near Granby.
Judge Timothy M. Tymkovich dismissed a 2017 lawsuit filed by environmental groups led by Save the Colorado against the U.S. Bureau of Reclamation and the Army Corps of Engineers. The ruling holds that those federal agencies complied with federal law in issuing a Record of Decision that authorizes the Windy Gap Firming Project.
The Windy Gap Firming Project includes the construction of Chimney Hollow Reservoir, which will be located in a dry valley just west of Carter Lake in southwest Larimer County. The reservoir will store 90,000 acre-feet of water from the Windy Gap Project for use by 12 participants, including Broomfield, Platte River Power Authority, Longmont, Loveland, Greeley, Erie, Little Thompson Water District, Superior, Louisville, Fort Lupton, Lafayette and the Central Weld County Water District. Chimney Hollow Reservoir will make the Windy Gap water supply serving those participants more reliable and help them meet a portion of their long-term water supply needs. Each participant has also enacted a water conservation plan to comply with the Record of Decision.
Environmental measures related to the Project also include the Colorado River Connectivity Channel, a newly proposed channel around Windy Gap Reservoir to reconnect the Colorado River above and below the reservoir. The channel will restore the ability for fish, macroinvertebrates, nutrients and sediment in the river to bypass the reservoir.
The Record of Decision also mandates many other environmental protections, including improving streamflow and aquatic habitat, addressing water quality issues, providing West Slope water supplies and more. Northern Water and its Municipal Subdistrict negotiated with Colorado River stakeholders to develop this package of environmental protections and received a permit from Grand County and approvals from others, including Trout Unlimited and the State of Colorado, to move forward with the Project.
Water storage such as Chimney Hollow Reservoir was specifically identified in the Colorado Water Plan as a necessary component for Colorado’s long-term water future. It joins conservation, land use planning and other solutions to meet future water needs in the state.
“This ruling marks an important milestone for the participants in the Windy Gap Firming Project,” said Northern Water General Manager Brad Wind. “Chimney Hollow Reservoir and the Colorado River Connectivity Channel will serve as examples of how statewide cooperation can produce water supply solutions and environmental improvements that benefit everyone.”
Barnard Construction has been chosen as the contractor to build Chimney Hollow Reservoir, and work will commence on the project in 2021. Design work is well under way for the Colorado River Connectivity Channel, and construction is anticipated to begin there in 2022.
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