Nemacolin is an earth dam located in Washington County, Pennsylvania, built in 1964. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 46 ft46 ft tall and 340 ft long, taller than 91% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Nemacolin
The primary purpose of Nemacolin is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Nemacolin Country Club (private). It impounds the Tr Pike Run.
The dam stands 46 feet tall and stretches 340 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 82 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1964, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 06/17/2016. That was over 10 years ago.
At 46 feet, this dam is taller than 91% of dams nationwide.
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Location
| State | Pennsylvania |
| County | Washington |
| River/Stream | Tr Pike Run |
| Coordinates | 40.06083, -80.00639 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 46 ft |
| Dam Height | 46 ft |
| Dam Length | 340 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 82 acre-ft |
| Max Storage | 82 acre-ft |
| Normal Storage | 42 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Nemacolin Country Club |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 06/17/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | PA01317 |
| Federal ID | PA01317 |
| More Info | State Dam Safety Program |