Wirth Reservoir is an earth dam located in Baker County, Oregon, built in 1966. It carries a Low hazard potential classification.
Dam profile
NID height · 38 ft38 ft tall and 545 ft long, taller than 84% of U.S. dams with a recorded height. 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 Wirth Reservoir
The primary purpose of Wirth Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Mary Louise Wirth (private). It impounds the Big Creek near Keating.
The dam stands 38 feet tall and stretches 545 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 59 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1966, 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. The most recent inspection on record was 04/26/2017.
At 38 feet, this dam is taller than 84% of dams nationwide.
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Location
| State | Oregon |
| County | Baker |
| Nearest City | Keating |
| River/Stream | Big Creek |
| Coordinates | 44.98816, -117.64485 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 36 ft |
| Dam Length | 545 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 59 acre-ft |
| Max Storage | 59 acre-ft |
| Normal Storage | 59 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 100 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Mary Louise Wirth |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 04/26/2017 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OR00466 |
| Federal ID | OR00466 |
| More Info | State Dam Safety Program |