Fish Lake is an earth dam located in Ravalli County, Montana, built in 1927. It carries a Low hazard potential classification.
Dam profile
NID height · 26 ft26 ft tall and 287 ft long, taller than 55% 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 Fish Lake
The primary purpose of Fish Lake is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Usda Fs (federal). It impounds the South Fork Lost Horse Creek near Hamilton, Mt.
The dam stands 26 feet tall and stretches 287 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 400 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1927, the structure is well-established, with more than 75 years of service.
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 03/02/2017.
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Location
| State | Montana |
| County | Ravalli |
| Nearest City | Hamilton, Mt |
| River/Stream | South Fork Lost Horse Creek |
| Coordinates | 46.09913, -114.45406 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 26 ft |
| Dam Length | 287 ft |
| Year Completed | 1927 (99 years old) |
Storage & Hydraulics
| NID Storage | 400 acre-ft |
| Max Storage | 400 acre-ft |
| Normal Storage | 282 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Usda Fs |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 03/02/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00851 |
| Federal ID | MT00851 |
| More Info | State Dam Safety Program |