Bostwicks Pond Dam
Bostwicks Pond Dam is an earth dam located in Cumberland County, New Jersey, built in 1934. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Bostwicks Pond Dam
The primary purpose of Bostwicks Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Bostwick Lake Commission (local government). It impounds the Cohansey River.
The dam stands 13 feet tall and stretches 730 feet across, creates a reservoir covering 40 acres, has a storage capacity of 52 acre-feet, and collects water from a drainage area of 8 square miles. Completed in 1934, 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 06/10/2024.
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Location
| State | New Jersey |
| County | Cumberland |
| River/Stream | Cohansey River |
| Coordinates | 39.52828, -75.26773 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 730 ft |
| Year Completed | 1934 (92 years old) |
Storage & Hydraulics
| NID Storage | 52 acre-ft |
| Normal Storage | 52 acre-ft |
| Surface Area | 40 acres |
| Drainage Area | 8 sq mi |
| Max Discharge | 2,952 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Bostwick Lake Commission |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/10/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00039 |
| Federal ID | NJ00039 |
| More Info | State Dam Safety Program |