Glendo Dam is a zoned earthfill structure on the North Platte River about 4.5 miles southeast of Glendo. The embankment has a structural height of 190 feet and a length of 2,096 feet along the crest. About 2,440 feet of dikes are required across a low area on the south side of the reservoir 1.5 miles west of the dam. The dam forms a reservoir 14 miles in length, having a total capacity of 789,402 acre-feet at water surface elevation 4653, the top of the flood control capacity. Space is provided in the reservoir for storing 115,000 acre-feet of sediment, an estimated 100-year accumulation. There are 454,337 acre-feet allotted for irrigation and power and 271,917 acre-feet for flood control. In addition, a surcharge capacity of 329,251 acre-feet is available. These capacities differ slightly from the original storage allocations because of sediment accumulation.
An uncontrolled concrete spillway 45 feet wide is located about 450 feet north of the right abutment of the dam. The Glendo Powerplant is joined to the Glendo Reservoir by a diversion tunnel 21 feet in diameter and 2,100 feet long. The plant contains two units having a maximum rated head of 130 feet. Each unit has an installed capacity of 12,000 kilowatts.
General
Project
PSMBP-Glendo Unit
Longitude
-104.9833
Watercourse
North Platte River
Reservoir
Glendo
Original Construction
1955-1958
National ID Number
WY01291
Latitude
42.4833
Dimensions
Crest Elevation
4675.0 ft
Hydraulic Height (Normal Operating Depth at Dam)
145.0 ft
Top of Inactive Conservation Pool (Elevation)
4570.0 ft
Spillway Crest Elevation
4653.0 ft
Top of Dead Storage Pool (Elevation)
4545.0 ft
Streambed at Dam Axis
4508.0 ft
Structural Height
190.0 ft
Top of Active Conservation Pool (Elevation)
4635.0 ft
Hydraulics & Hydrology
Spillway Capacity at Elevation
10335 cfs at 4669.0 ft
Auxiliary Spillway
No
Outlet Works Capacity at Elevation
13000.0 cfs at 4669.0 ft
Drainage Area
4300 sq mi
Hydrometeorological Report (HMR)
HMR 55A
Net Generation
55,640,430 kWh
Contact
Owner
Title: Area Manager Organization: Wyoming Area Office Address: P.O. Box 1630 City: Mills, WY 82644 Phone: 307-261-5671
Operator
Title: Area Manager Organization: Wyoming Area Office Address: P.O. Box 1630 City: Mills, WY 82644 Phone: 307-261-5671
More Information about the U.S. Bureau of Reclamation