Pleasant Mills Dam
Pleasant Mills Dam is an earth dam located in Atlantic County, New Jersey. It carries a Significant hazard potential classification and has a poor condition assessment.
About Pleasant Mills Dam
The primary purpose of Pleasant Mills Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Nescochague Lake Assoc. Inc. (private). It impounds the Hammonton Creek.
The dam stands 16 feet tall and stretches 300 feet across, creates a reservoir covering 45 acres, has a storage capacity of 160 acre-feet, and collects water from a drainage area of 18 square miles.
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 04/15/2025.
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Location
| State | New Jersey |
| County | Atlantic |
| River/Stream | Hammonton Creek |
| Coordinates | 39.63602, -74.66068 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 300 ft |
Storage & Hydraulics
| NID Storage | 160 acre-ft |
| Normal Storage | 160 acre-ft |
| Surface Area | 45 acres |
| Drainage Area | 18 sq mi |
| Max Discharge | 1,516 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Nescochague Lake Assoc. Inc. |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 04/15/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00044 |
| Federal ID | NJ00044 |
| More Info | State Dam Safety Program |