Stump Lake Dam is an earth dam located in Douglas County, Oregon, built in 1953. It carries a Low hazard potential classification.
Dam profile
NID height · 21 ft21 ft tall and 300 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Stump Lake Dam
The primary purpose of Stump Lake Dam is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Pacificorp (public utility). It impounds the Clearwater Rivr near Idylyld Park.
The dam stands 21 feet tall and stretches 300 feet across, creates a reservoir covering 36 acres, has a maximum storage capacity of 152 acre-feet, and collects water from a drainage area of 42 square miles. Completed in 1953, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
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Location
| State | Oregon |
| County | Douglas |
| Nearest City | Idylyld Park |
| River/Stream | Clearwater Rivr |
| Coordinates | 43.24623, -122.28199 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 17 ft |
| Dam Length | 300 ft |
| Year Completed | 1953 (73 years old) |
Storage & Hydraulics
| NID Storage | 152 acre-ft |
| Max Storage | 152 acre-ft |
| Normal Storage | 152 acre-ft |
| Surface Area | 36 acres |
| Drainage Area | 42 sq mi |
| Max Discharge | 9,500 cfs |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Pacificorp |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00565 |
| Federal ID | OR00565 |
| More Info | State Dam Safety Program |