Wales Creek Reservoir is an earth dam located in Powell County, Montana, built in 1953. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 307 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 Wales Creek Reservoir
The primary purpose of Wales Creek Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Wales Brothers (private). It impounds the Wales Creek near Bonner.
The dam stands 20 feet tall and stretches 307 feet across, has a maximum storage capacity of 268 acre-feet, and collects water from a drainage area of 13 square miles. Completed in 1953, 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 | Powell |
| Nearest City | Bonner |
| River/Stream | Wales Creek |
| Coordinates | 46.91170, -113.13740 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 307 ft |
| Year Completed | 1953 (73 years old) |
Storage & Hydraulics
| NID Storage | 268 acre-ft |
| Max Storage | 268 acre-ft |
| Normal Storage | 137 acre-ft |
| Drainage Area | 13 sq mi |
| Max Discharge | 390 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Wales Brothers |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT01225 |
| Federal ID | MT01225 |
| More Info | State Dam Safety Program |