Sagittaurius is an earth dam located in Toole County, Montana, built in 1945. It carries a Low hazard potential classification.
Dam profile
NID height · 12 ft12 ft tall and 250 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 Sagittaurius
The primary purpose of Sagittaurius 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 State of Montana, D.n.r.c., T.l.m.d. (state). It impounds the Tr-west Fork Willow Creek near Devon.
The dam stands 12 feet tall and stretches 250 feet across, has a maximum storage capacity of 291 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1945, 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 | Toole |
| Nearest City | Devon |
| River/Stream | Tr-west Fork Willow Creek |
| Coordinates | 48.49280, -111.53680 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 250 ft |
| Year Completed | 1945 (81 years old) |
Storage & Hydraulics
| NID Storage | 291 acre-ft |
| Max Storage | 291 acre-ft |
| Normal Storage | 58 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 440 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | State of Montana, D.n.r.c., T.l.m.d. |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT03652 |
| Federal ID | MT03652 |
| More Info | State Dam Safety Program |