Lake Erskine Dam is an earth dam located in Passaic County, New Jersey, built in 1930. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 10 ft10 ft tall and 200 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 Erskine Dam
The primary purpose of Lake Erskine Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Erskine Lakes Property Association (private). It impounds the Wanaque River-tr near Ringwood.
The dam stands 10 feet tall and stretches 200 feet across, creates a reservoir covering 80 acres, has a maximum storage capacity of 1,047 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1930, 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 08/29/2024.
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Location
| State | New Jersey |
| County | Passaic |
| Nearest City | Ringwood |
| River/Stream | Wanaque River-tr |
| Coordinates | 41.09557, -74.25795 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 200 ft |
| Year Completed | 1930 (96 years old) |
Storage & Hydraulics
| NID Storage | 1,047 acre-ft |
| Max Storage | 1,047 acre-ft |
| Normal Storage | 916 acre-ft |
| Surface Area | 80 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 126 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Erskine Lakes Property Association |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/29/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00196 |
| Federal ID | NJ00196 |
| More Info | State Dam Safety Program |