Stagecoach Hydroelectric Project Project No. 9202 Colorado
In accordance with the National Environmental Policy Act of 1969, as amended, and the Federal Energy Regulatory Commission’s (Commission) regulations (18 CFR Part 380),the Office of Energy Projects has prepared an environmental assessment (EA) regarding Upper Yampa Water Conservancy District’s (District) request for a non-capacity license amendment for the Stagecoach Project (FERC No. 9202) located on the Yampa River in Routt County, Colorado. The District requests Commission approval to amend the project’s license to (1) increase the height of the project dam spillway’s crest elevation by 4 feet, and (2) increase the maximum operating storage elevation of Stagecoach Reservoir by 4 feet. This would increase the maximum storage capacity in Stagecoach Reservoir from 33,275 acre-feet to 36,460 acre-feet, and increase the project’s potential for increasing downstream water supply. This EA concludes that the proposed license amendment, with staff’s recommended mitigation measures, would not constitute a major federal action significantly affecting the quality of the human environment.
(Sept 15, 2009 – this Notice of Availability Environmental Assessment report is in .pdf format)
Details are forthcoming
The Stagecoach Reservoir Project
The project was conceived in 1983 by the Board of the Upper Yampa Water Conservancy District and designed to provide a reliable source of water for the growing population and economy of Northwest Colorado.
The reservoir furnishes water for agricultural irrigation, municipalities and industry, serving the community for many decades to come as a multi-purpose conservation reservoir. Furthermore it generates 800 kilowatts of electrical energy and forms a beautiful recreation lake in a spectacular setting.
This Dam was constructed using a new method of construction called Roller Compacted Concrete (RCC) which is basically a low grade concrete for the gravity core of the structure. This is the 10th such RCC dam in North America. The dam structure was built in 37 days working around the clock, by ASI-RCC, Inc. of Buena Vista, Colorado. The Stagecoach Dam & Reservoir was dedicated on 12 August 1989.
The Yamcolo Reservoir was conceived by ranchers of the Upper Yampa Valley and the Toponas Basin in the early 1960’s to alleviate frequent shortages of crucial irrigation water.
In 1977 the Upper Yampa Water Conservancy District , organized by its first president Loy Ardrey, obtained a commitment from the Colorado Ute Electric Company for the annual purchase of water. This was the key to initiating the project.
John R Fetcher Hydroelectric Plant
Stagecoach Reservoir and Dam incorporated the first hydroelectric power plant in Northwest Colorado. The John R Fetcher Hydroelectric Plant, certified as the first producer of “green power” in the United States, generates 5 million kilowatt-hours of renewable energy each year. This is enough electricity to power approximately 500 homes.
The turbine-generator is rated at 800 kilowatts and runs continuously with a minimum amount of attention.