Overview
Prosser Creek Reservoir was the initial feature of the Washoe Project. Prosser Creek Dam and Reservoir are located on Prosser Creek approximately 1.5 miles above the confluence of Prosser Creek and the Truckee River. The dam is an earthen structure 163 feet high and 1,830 feet long. It is capable of storing 29,800 acre-feet of water for flood control, recreation and improvement of fishery flows in the Truckee River. Storage began in January 1963.
The Washoe Project originally planned for facilities in both the Carson and Truckee River basins. The basic plan for the Project was to provide supplemental irrigation water for existing projects, flood control, municipal, and industrial water supplies for Reno and Sparks, fish and wildlife benefits, and recreation. The features of the Washoe Project which have been constructed include: Stampede Dam, Reservoir and Power plant; Prosser Creek Dam and Reservoir; and Marble Bluff Dam and Pyramid Lake Fishway.
General
| Project | Washoe |
| Watercourse | Prosser Creek |
| Original Construction | 1959-1962 |
| Reservoir | Prosser Creek |
| National ID Number | CA10179 |
Dimensions
| Structural Height | 163.0 ft |
| Crest Length | 1830.00 ft |
| Top of Joint Use Pool (Elevation) | 5741.20 ft |
| Top of Active Conservation Pool (Elevation) | 5703.73 ft |
| Top of Inactive Conservation Pool (Elevation) | 5660.60 ft |
| Spillway Crest Elevation | 5741.20 ft |
| Top of Dead Storage Pool (Elevation) | 5637.00 ft |
| Streambed at Dam Axis | 5622.00 ft |
| Crest Elevation | 5761.00 ft |
| Hydraulic Height (Normal Operating Depth at Dam) | 119.20 ft |
Hydraulics & Hydrology
| Normal Water Surface Elevation | 5703.73 ft |
| Spillway Capacity at Elevation | 2750 cfs at 5754.5 ft |
| Auxiliary Spillway | No |
| Outlet Works Capacity at Elevation | 1900 cfs at 5754.5 ft |
| Drainage Area | 50.0 sq mi |
| Hydrometeorological Report (HMR) | HMR 36 |
Contact
