Cumberland Pond Dam
Cumberland Pond Dam is an earth dam located in Cumberland County, New Jersey, built in 1929. It carries a Significant hazard potential classification and has a poor condition assessment.
About Cumberland Pond Dam
The primary purpose of Cumberland Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Njdot (state). It impounds the Manumuskin River near Pt. Elizabeth.
The dam stands 12 feet tall and stretches 840 feet across, creates a reservoir covering 26 acres, has a storage capacity of 57 acre-feet, and collects water from a drainage area of 27 square miles. Completed in 1929, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 07/18/2023.
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Location
| State | New Jersey |
| County | Cumberland |
| Nearest City | Pt. Elizabeth |
| River/Stream | Manumuskin River |
| Coordinates | 39.37308, -74.94470 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 840 ft |
| Year Completed | 1929 (97 years old) |
Storage & Hydraulics
| NID Storage | 57 acre-ft |
| Normal Storage | 57 acre-ft |
| Surface Area | 26 acres |
| Drainage Area | 27 sq mi |
| Max Discharge | 58 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | NJDOT |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 07/18/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00824 |
| Federal ID | NJ00824 |
| More Info | State Dam Safety Program |