Overview
Warm Springs Dam is on the Middle Fork of the Malheur River about 13 miles southwest of Juntura, Oregon. The dam, constructed by the Warmsprings Irrigation District, is a 106-foot-high thin arch structure, and contains 19,500 cubic yards of concrete. The total capacity of the reservoir is 169,714 acre-feet (active169,639 acre-feet). In 1926, Reclamation purchasedone-half of the storage in the reservoir for use on the Vale Project, and in 1930, added a metal truss flashboard structure on the spillway crest to increase the amount of reservoir storage.
Geology
Foundation: Series of olivine basalt flows
General
| Project | Vale |
| Location | 13 miles southwest of Juntura, Oregon |
| Longitude | -118.2092857 |
| Latitude | 43.58505 |
| Watercourse | Middle Fork of the Malheur River |
| Reservoir | Warm Springs |
| Original Construction | 1918-1919 |
| Modified Construction | 1930, 1939 |
| National ID Number | OR00082 |
| Base Width | 28.0 ft |
Dimensions
| Crest Elevation | 3409.0 ft |
| Top Parapet (Elevation) | 3410.0 ft |
| Structural Height | 106.0 ft |
| Hydraulic Height (Normal Operating Depth at Dam) | 92.0 ft |
| Crest Length | 469.0 ft |
| Crest Width | 8.0 ft |
| Top of Active Conservation Pool (Elevation) | 3406.0 ft |
| Volume of Dam Construction Materials | 19,500 cu yd |
| Spillway Crest Elevation | 3401 ft |
Hydraulics & Hydrology
| Spillway Type | Overflow crest controlled by flashboards |
| Spillway Capacity at Elevation | 9,700 cfs at 3406.0 ft |
| Outlet Works Capacity at Elevation | 2,000 cfs at 3406.0 ft |
| Drainage Area | 1,110 sq mi |
| Hydrometeorological Report (HMR) | HMR 57 |
| Maximum Water Surface Elevation | 3409 ft |
| Normal Water Surface Elevation | 3406.0 ft |
| Total Water Storage at Elevation | 169,700 ac-ft at 3406 ft |
Contact
