Reservoir Lake is an earth dam located in Beaverhead County, Montana, built in 1920. It carries a Low hazard potential classification.
Dam profile
NID height · 9 ft9 ft tall and 315 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 Reservoir Lake
The primary purpose of Reservoir Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Usda Fs (federal). It impounds the Bloody Dick Cr near Dillon, Mt.
The dam stands 9 feet tall and stretches 315 feet across, creates a reservoir covering 40 acres, has a maximum storage capacity of 355 acre-feet, and collects water from a drainage area of 1 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. The most recent inspection on record was 09/29/2015. That was over 11 years ago.
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Location
| State | Montana |
| County | Beaverhead |
| Nearest City | Dillon, Mt |
| River/Stream | Bloody Dick Cr |
| Coordinates | 45.12281, -113.45221 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 315 ft |
| Year Completed | 1920 (106 years old) |
Storage & Hydraulics
| NID Storage | 355 acre-ft |
| Max Storage | 355 acre-ft |
| Normal Storage | 44 acre-ft |
| Surface Area | 40 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 218 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Usda Fs |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/29/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00897 |
| Federal ID | MT00897 |
| More Info | State Dam Safety Program |