This article was accepted into the corpus but its outbound wikilinks were never NER-processed — typical at the deepest BFS hop or when the run's entity cap was reached. No expansion funnel to show.
| Glendo Reservoir | |
|---|---|
| Name | Glendo Reservoir |
| Location | Platte County, Wyoming, United States |
| Type | Reservoir |
| Inflow | North Platte River |
| Outflow | North Platte River |
| Basin countries | United States |
| Area | 19,000 acres |
| Max-depth | 200 ft |
| Volume | 550,000 acre-feet |
| Elevation | 4,340 ft |
Glendo Reservoir
Glendo Reservoir is a man-made impoundment on the North Platte River in eastern Wyoming, formed by the construction of Glendo Dam. The reservoir lies within Platte County, Wyoming and serves multipurpose roles including water storage, flood control, hydroelectric generation, and recreation. Its setting in the Laramie Range foothills and proximity to regional infrastructure make it integral to water management tied to the Platte River Basin and downstream uses in Nebraska and Colorado.
The reservoir occupies a valley carved by the North Platte River downstream of the junction with the Sweetwater River and upstream of the North Platte River (Nebraska) reach leading toward the Platte River. It is bounded by rolling terrain of the Laramie Peak region and sits within the High Plains-adjacent landscape. Seasonal snowmelt from the Wind River Range and runoff from the Medicine Bow Mountains contribute to inflows, which are regulated to meet allocations under interstate compacts such as the South Platte River Compact and management regimes influenced by the Missouri River Basin Project frameworks. The reservoir’s storage regime moderates historic flood peaks from spring melt events and low-flow periods during arid summers, interacting with downstream facilities including Guernsey Dam and irrigation works serving the North Platte Project.
Planning for the impoundment was initiated during mid-20th-century federal water development initiatives led by the United States Bureau of Reclamation in coordination with the United States Army Corps of Engineers and state authorities of Wyoming. Construction of the dam and appurtenant works was completed as part of broader post‑New Deal and post‑World War II infrastructure programs that also encompassed projects like Yellowtail Dam and Garrison Dam. The site selection reflected technical analyses following flood events and increasing demands tied to agricultural expansion in the North Platte River Valley and municipal growth in communities such as Casper, Wyoming and Wheatland, Wyoming. Early project milestones involved land acquisition negotiations with private landowners, coordination with tribal entities including the Northern Arapaho and Eastern Shoshone nations over downstream water rights, and legal frameworks referencing the Equal Footing Doctrine in western water law adjudications.
Glendo Dam is an earthen and rockfill structure anchored in bedrock, designed to impound substantial floodwaters and store regulated releases for irrigation and municipal supply. Its design incorporated standards from the Bureau of Reclamation and seismic considerations informed by regional fault mapping including studies similar to those used for Yellowstone National Park-adjacent infrastructure. The dam includes spillway works, outlet works, and a hydroelectric plant that ties into regional transmission managed by utilities comparable to Pacificorp and Basin Electric Power Cooperative. Access infrastructure comprises state highways, service roads, and ancillary facilities such as boat ramps, marinas, and maintenance yards adjacent to utility corridors like the Yellowstone to Rockies transmission alignments. Engineering upgrades over time have addressed sedimentation, slope stability, and instrumentation including piezometers and inclinometers used across federal projects like Oroville Dam for comparative monitoring.
The reservoir and its shoreline support extensive recreational uses including boating, angling, camping, and hunting, drawing visitors from nearby population centers such as Cheyenne, Wyoming, Casper, Wyoming, and Scottsbluff, Nebraska. Fisheries are managed for sport species like walleye, sauger, northern pike, and kokanee salmon, with stocking and harvest regulations administered by the Wyoming Game and Fish Department. Upland and riparian habitats support populations of mule deer, pronghorn, and waterfowl species that congregate during migration corridors linked to the Central Flyway. Recreational facilities are coordinated with federal partners such as the United States Forest Service and state park systems akin to Guernsey State Park, and events including regional fishing tournaments and outdoor education programs attract stakeholders ranging from the Boy Scouts of America to university research teams from institutions like the University of Wyoming.
Operational control is exercised under federal authorization with day-to-day management involving the Bureau of Reclamation, local irrigation districts, and state agencies. Water release schedules are coordinated to satisfy downstream irrigation districts, municipal suppliers, and ecological flow targets, referencing compacts such as allocations observed in the Republican River Compact and other interbasin agreements. Emergency preparedness planning aligns with federal guidelines used at other large reservoirs including Glen Canyon Dam to address extreme flood events, drought contingency, and dam safety protocols under the oversight of the Federal Emergency Management Agency and state emergency management offices. Financial and administrative arrangements involve irrigation districts, recreation concessionaires, and law enforcement partners like the Wyoming Game and Fish Commission for resource protection.
Reservoir operations have altered natural flow regimes, affecting sediment transport, water temperature stratification, and aquatic habitat connectivity in ways documented in basin-scale studies similar to those on the Colorado River and Missouri River. Water quality monitoring addresses nutrients, algal blooms, and contaminants of emerging concern with programs paralleling state surface water assessments used by agencies such as the Environmental Protection Agency and regional water quality districts. Mitigation measures include riparian restoration, fish passage strategies examined in comparative studies with Bonneville Dam projects, and adaptive management to balance human uses with habitat conservation priorities advocated by organizations like the Nature Conservancy and the Audubon Society.
Category:Reservoirs in Wyoming Category:Platte County, Wyoming