Lost River Diversion Dam is a concrete dam located in Klamath County, Oregon, built in 1912. It carries a Low hazard potential classification.
Dam profile
NID height · 42 ft42 ft tall and 675 ft long, taller than 88% 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 concrete gravity section and the water level is illustrative.
About Lost River Diversion Dam
The primary purpose of Lost River Diversion Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Bureau of Reclamation (federal). It impounds the Lost River near Merrill.
The dam stands 42 feet tall and stretches 675 feet across, creates a reservoir covering 281 acres, and has a maximum storage capacity of 2,300 acre-feet. Completed in 1912, 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.
At 42 feet, this dam is taller than 88% of dams nationwide.
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Location
| State | Oregon |
| County | Klamath |
| Nearest City | Merrill |
| River/Stream | Lost River |
| Coordinates | 42.14260, -121.67290 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 42 ft |
| Dam Height | 41 ft |
| Dam Length | 675 ft |
| Year Completed | 1912 (114 years old) |
Storage & Hydraulics
| NID Storage | 2,300 acre-ft |
| Max Storage | 2,300 acre-ft |
| Normal Storage | 2,300 acre-ft |
| Surface Area | 281 acres |
| Max Discharge | 13,000 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Bureau of Reclamation |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00586 |
| Federal ID | OR00586 |
| More Info | State Dam Safety Program |