North Fork Plug Dam is a gravity dam located in Valley County, Montana. It carries a Low hazard potential classification and has a unsatisfactory condition assessment.
Dam profile
NID height · 19 ft19 ft tall and 4,720 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About North Fork Plug Dam
North Fork Plug Dam is a dam in Valley, Montana. The dam is owned by Doi BLM (federal). It impounds the Lone Tree Creek.
The dam stands 19 feet tall and stretches 4,720 feet across, creates a reservoir covering 73 acres, has a maximum storage capacity of 122 acre-feet, and collects water from a drainage area of 0 square miles.
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 unsatisfactory, indicating serious safety deficiencies exist that require immediate attention or remedial action. The most recent inspection on record was 09/26/2008. That was over 18 years ago.
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Location
| State | Montana |
| County | Valley |
| River/Stream | Lone Tree Creek |
| Coordinates | 47.99780, -107.00610 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 19 ft |
| Dam Length | 4,720 ft |
Storage & Hydraulics
| NID Storage | 122 acre-ft |
| Max Storage | 122 acre-ft |
| Surface Area | 73 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | Doi BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Unsatisfactory |
| Last Inspection | 09/26/2008 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT03144 |
| Federal ID | MT03144 |
| More Info | State Dam Safety Program |