Pitt Lake Dam is an earth dam located in Lake County, Oregon, built in 1920. It carries a Low hazard potential classification.
Dam profile
NID height · 11 ft11 ft tall and 310 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 Pitt Lake Dam
The primary purpose of Pitt Lake Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Edward Garrett (private). It impounds the Barnes Valley Creek, Trib to near Bonanza.
The dam stands 11 feet tall and stretches 310 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 122 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1920, the structure is over a century 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 | Lake |
| Nearest City | Bonanza |
| River/Stream | Barnes Valley Creek, Trib to |
| Coordinates | 42.21645, -120.83979 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 310 ft |
| Year Completed | 1920 (106 years old) |
Storage & Hydraulics
| NID Storage | 122 acre-ft |
| Max Storage | 122 acre-ft |
| Normal Storage | 122 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 118 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Edward Garrett |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00533 |
| Federal ID | OR00533 |
| More Info | State Dam Safety Program |