Ponch is an earth dam located in Campbell County, Wyoming, built in 1968. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 19 ft19 ft tall and 1,010 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 Ponch
The primary purpose of Ponch 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 Harris Mv Ranch LLC (private). It impounds the White Tail Creek near Powderville Montana.
The dam stands 19 feet tall and stretches 1,010 feet across, creates a reservoir covering 20 acres, and has a maximum storage capacity of 235 acre-feet. Completed in 1968, 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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 06/16/2022.
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Location
| State | Wyoming |
| County | Campbell |
| Nearest City | Powderville Montana |
| River/Stream | White Tail Creek |
| Coordinates | 44.77460, -105.58060 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 1,010 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 235 acre-ft |
| Max Storage | 235 acre-ft |
| Normal Storage | 114 acre-ft |
| Surface Area | 20 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Harris Mv Ranch LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 06/16/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00502 |
| Federal ID | WY00502 |
| More Info | State Dam Safety Program |