Bumphead Reservoir
Bumphead Reservoir is an earth dam located in Klamath County, Oregon, built in 1957. It carries a Low hazard potential classification.
About Bumphead Reservoir
The primary purpose of Bumphead Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Willow Valley Ranch, C/o Darrel Bagley (local government). It impounds the Lost River, Trib To near Bonanza.
The dam stands 27 feet tall and stretches 500 feet across, creates a reservoir covering 125 acres, has a maximum storage capacity of 1,450 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1957, 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 08/12/2015. That was over 10 years ago.
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Location
| State | Oregon |
| County | Klamath |
| Nearest City | Bonanza |
| River/Stream | Lost River, Trib To |
| Coordinates | 42.05410, -121.10643 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 25 ft |
| Dam Length | 500 ft |
| Year Completed | 1957 (69 years old) |
Storage & Hydraulics
| NID Storage | 1,450 acre-ft |
| Max Storage | 1,450 acre-ft |
| Normal Storage | 1,450 acre-ft |
| Surface Area | 125 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 988 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | WILLOW VALLEY RANCH, C/O DARREL BAGLEY |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 08/12/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00330 |
| Federal ID | OR00330 |
| More Info | State Dam Safety Program |