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| Shoshone (Barker) Dam | |
|---|---|
| Name | Shoshone (Barker) Dam |
| Location | Glenwood Springs, Garfield County, Colorado, United States |
| Status | Operational |
| Opening | 1910 |
| Owner | City of Glenwood Springs |
| Dam type | Concrete gravity |
| Height | 317ft |
| Length | 1,800ft |
| Reservoir | Shoshone Reservoir |
| Plant capacity | 15 MW |
| Plant operator | Public Service Company of Colorado |
Shoshone (Barker) Dam is a historic concrete gravity dam on the Colorado River near Glenwood Springs, Colorado, United States. The structure, completed in 1910, forms Shoshone Reservoir and supports hydroelectric generation, municipal water supply, and river regulation that have influenced regional Western United States water development, Colorado River Compact, and municipal operations in Glenwood Springs and Aspen, Colorado. The dam is associated with early 20th‑century irrigation and power enterprises, local landmark designations, and ongoing legal and environmental debates involving U.S. Bureau of Reclamation, Environmental Protection Agency, and regional water districts.
Shoshone (Barker) Dam sits within the Roaring Fork River–Colorado River watershed near the confluence of tributaries draining the White River National Forest and the Gunnison River basin. The facility links historical figures and companies such as the Barker family, early utility firms, and municipal authorities including the City of Glenwood Springs and regional utilities like Xcel Energy. Its operations affect downstream communities such as Grand Junction, Colorado, Denver Water, and agricultural areas in the Western Slope.
Conceived during the rapid expansion of hydroelectric projects in the American West, Shoshone (Barker) Dam was authorized in the early 1900s amid contemporaneous works like the Hoover Dam planning era and precedents such as Glen Canyon Dam proposals. Construction employed contractors and engineers linked to firms active in projects across California, Utah, and New Mexico, and utilized labor practices common to the period reflected in projects like the Transcontinental Railroad and mining infrastructure in Leadville, Colorado. The dam’s completion in 1910 coincided with municipal consolidation of utility assets and legal instruments resembling provisions in the 1922 Compact era, shaping long‑term water rights adjudication involving entities such as the State of Colorado and the U.S. Supreme Court.
The dam is a concrete gravity structure with a height of approximately 317 feet and length near 1,800 feet, incorporating spillway works, intake towers, and conduits feeding penstocks that supply a downstream powerhouse. Design elements reflect early 20th‑century engineering practices similar to those used at Newlands Reclamation Project facilities and later refined in projects like Bureau of Reclamation dams. Structural assessments reference standards developed by organizations such as the American Society of Civil Engineers and inspection protocols used by Federal Energy Regulatory Commission for hydro facilities, while seismic considerations align with regional planning by the United States Geological Survey.
Hydropower at the site has provided peaking and base load generation, with installed capacity historically around 15 MW and operators including municipal utilities and private companies such as Public Service Company of Colorado. Generation profiles interact with regional grids managed by entities like the Western Electricity Coordinating Council and power markets influenced by North American Electric Reliability Corporation standards. The facility’s role in renewable energy portfolios intersects with state policies from the Colorado Department of Public Health and Environment and energy planning by agencies including the Federal Energy Regulatory Commission.
Shoshone Reservoir stores water for municipal supply, riparian maintenance, and flow augmentation to support downstream water rights held by entities including irrigation districts and municipalities. Management interfaces with interstate water frameworks like the Colorado River Compact and water administration by the Colorado Division of Water Resources. Operations affect downstream infrastructure such as diversion dams serving the Colorado-Big Thompson Project and agricultural withdrawals in the Gunnison Basin, while coordination occurs with stakeholders including the Upper Colorado River Commission.
The dam and reservoir have altered riverine habitat, fish passage, and sediment transport, affecting species documented by the U.S. Fish and Wildlife Service and state agencies such as the Colorado Parks and Wildlife. Impacts mirror those at other Western dams, prompting mitigation and restoration efforts akin to programs for the Yampa River and Green River basins. Environmental review processes have engaged legal frameworks including the National Environmental Policy Act and consultations under the Endangered Species Act when species or habitats of concern arise.
Shoshone Reservoir and surrounding lands provide recreational opportunities including angling, boating, and wildlife viewing that attract residents from Glenwood Springs, Aspen, Colorado, and regional visitors along corridors like Interstate 70. Land and access involve multiple jurisdictions such as county parks in Garfield County, Colorado and federal lands administered by the U.S. Forest Service, and recreational management considers resource stewardship models used at sites like Blue Mesa Reservoir and Great Sand Dunes National Park and Preserve.
The dam sits within areas of historical significance to Indigenous peoples including tribes with treaty and customary interests comparable to cases involving the Ute Indian Tribe of the Uintah and Ouray Reservation and Southern Ute Indian Tribe. Legal disputes over water rights, allocation, and environmental compliance have involved municipal governments, private utilities, and state agencies, echoing litigation in venues such as the Colorado Water Court and decisions by the U.S. Supreme Court that shape interstate river law. Contemporary cultural resource management and consultation follow protocols established by the National Historic Preservation Act and federal tribal consultation policies.
Category:Dams in Colorado Category:Hydroelectric power stations in Colorado Category:Buildings and structures in Garfield County, Colorado