Ebenezer is an earth dam located in Lebanon County, Pennsylvania, built in 1820. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 25 ft25 ft tall and 230 ft long, taller than 50% of U.S. dams with a recorded height. 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 Ebenezer
The primary purpose of Ebenezer is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by North Lebanon Township (local government). It impounds the Clarks Run.
The dam stands 25 feet tall and stretches 230 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 166 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1820, the structure is one of the older dams in the region, with over a century and a half of service.
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 03/29/2021.
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Location
| State | Pennsylvania |
| County | Lebanon |
| River/Stream | Clarks Run |
| Coordinates | 40.35722, -76.45528 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 230 ft |
| Year Completed | 1820 (206 years old) |
Storage & Hydraulics
| NID Storage | 166 acre-ft |
| Max Storage | 166 acre-ft |
| Normal Storage | 123 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | North Lebanon Township |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 03/29/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | PA00599 |
| Federal ID | PA00599 |
| More Info | State Dam Safety Program |