Oscar Dam
Oscar Dam is a gravity dam located in Harney County, Oregon, built in 1975. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Oscar Dam
The primary purpose of Oscar Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Doi Blm (federal). It impounds the Trib To Walls Lake near Frenchglen.
The dam stands 12 feet tall and stretches 207 feet across, has a maximum storage capacity of 67 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1975, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 09/25/2019.
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Location
| State | Oregon |
| County | Harney |
| Nearest City | Frenchglen |
| River/Stream | Trib To Walls Lake |
| Coordinates | 42.89715, -119.09439 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 12 ft |
| Dam Length | 207 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 67 acre-ft |
| Max Storage | 67 acre-ft |
| Normal Storage | 67 acre-ft |
| Drainage Area | 2 sq mi |
| Max Discharge | 132 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Water Supply |
| Owner | DOI BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/25/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR02604 |
| Federal ID | OR02604 |
| More Info | State Dam Safety Program |