Muddy Spots is an earth dam located in Cascade County, Montana, built in 1938. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 1,520 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 Muddy Spots
The primary purpose of Muddy Spots is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Ernest Largent (private). It impounds the Tr-muddy Creek near Black Eagle.
The dam stands 20 feet tall and stretches 1,520 feet across, and has a maximum storage capacity of 317 acre-feet. Completed in 1938, 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.
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Location
| State | Montana |
| County | Cascade |
| Nearest City | Black Eagle |
| River/Stream | Tr-muddy Creek |
| Coordinates | 47.65820, -111.58150 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 1,520 ft |
| Year Completed | 1938 (88 years old) |
Storage & Hydraulics
| NID Storage | 317 acre-ft |
| Max Storage | 317 acre-ft |
| Normal Storage | 40 acre-ft |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Ernest Largent |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT03300 |
| Federal ID | MT03300 |
| More Info | State Dam Safety Program |