Sanburn Reservoir is an earth dam located in Powder River County, Montana, built in 1961. It carries a Low hazard potential classification.
Dam profile
NID height · 31 ft31 ft tall and 185 ft long, taller than 72% 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 Sanburn Reservoir
The primary purpose of Sanburn Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Sanburn Ranch Inc (private). It impounds the Belle Creek near Mizpah.
The dam stands 31 feet tall and stretches 185 feet across, and has a maximum storage capacity of 364 acre-feet. Completed in 1961, 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 | Powder River |
| Nearest City | Mizpah |
| River/Stream | Belle Creek |
| Coordinates | 45.16340, -105.18180 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 185 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 364 acre-ft |
| Max Storage | 364 acre-ft |
| Normal Storage | 215 acre-ft |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Sanburn Ranch Inc |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT01808 |
| Federal ID | MT01808 |
| More Info | State Dam Safety Program |