Blacksville #1 Freshwater Imp
Blacksville #1 Freshwater Imp is an earth dam located in Greene County, Pennsylvania, built in 1974. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Blacksville #1 Freshwater Imp
The primary purpose of Blacksville #1 Freshwater Imp is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Cnx Water Assets, Llc (private). It impounds the Tr Dunkard Creek.
The dam stands 20 feet tall and stretches 1,655 feet across, creates a reservoir covering 24 acres, has a maximum storage capacity of 338 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1974, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 09/22/2017.
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Location
| State | Pennsylvania |
| County | Greene |
| River/Stream | Tr Dunkard Creek |
| Coordinates | 39.72417, -80.19861 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 1,655 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 338 acre-ft |
| Max Storage | 338 acre-ft |
| Normal Storage | 109 acre-ft |
| Surface Area | 24 acres |
| Drainage Area | 1 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | CNX WATER ASSETS, LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/22/2017 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | PA01850 |
| Federal ID | PA01850 |
| More Info | State Dam Safety Program |