Lake Neepaulin Dam is an earth dam located in Sussex County, New Jersey, built in 1927. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 22 ft22 ft tall and 300 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 Lake Neepaulin Dam
The primary purpose of Lake Neepaulin Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Township of Wantage (local government). It impounds the Papakating Creek near Sussex.
The dam stands 22 feet tall and stretches 300 feet across, creates a reservoir covering 13 acres, has a maximum storage capacity of 143 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1927, the structure is well-established, with more than 75 years 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 12/17/2023.
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Location
| State | New Jersey |
| County | Sussex |
| Nearest City | Sussex |
| River/Stream | Papakating Creek |
| Coordinates | 41.21447, -74.62567 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 300 ft |
| Year Completed | 1927 (99 years old) |
Storage & Hydraulics
| NID Storage | 143 acre-ft |
| Max Storage | 143 acre-ft |
| Normal Storage | 67 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 244 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Township of Wantage |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 12/17/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00282 |
| Federal ID | NJ00282 |
| More Info | State Dam Safety Program |