Larson #3 is an earth dam located in Custer County, Montana, built in 1955. It carries a Low hazard potential classification.
Dam profile
NID height · 14 ft14 ft tall and 350 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 Larson #3
The primary purpose of Larson #3 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 Cliff Larson (private). It impounds the Steiger Creek near Miles City.
The dam stands 14 feet tall and stretches 350 feet across, and has a maximum storage capacity of 52 acre-feet. Completed in 1955, 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.
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Location
| State | Montana |
| County | Custer |
| Nearest City | Miles City |
| River/Stream | Steiger Creek |
| Coordinates | 46.39380, -106.10190 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 350 ft |
| Year Completed | 1955 (71 years old) |
Storage & Hydraulics
| NID Storage | 52 acre-ft |
| Max Storage | 52 acre-ft |
| Normal Storage | 17 acre-ft |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Cliff Larson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT01643 |
| Federal ID | MT01643 |
| More Info | State Dam Safety Program |