Harrisonville Dam
Harrisonville Dam is an earth dam located in Gloucester County, New Jersey. It carries a Significant hazard potential classification and has a poor condition assessment.
About Harrisonville Dam
The primary purpose of Harrisonville Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Division Of Fish & Wildlife (state). It impounds the Oldmans Creek.
The dam stands 15 feet tall and stretches 425 feet across, creates a reservoir covering 17 acres, has a storage capacity of 187 acre-feet, and collects water from a drainage area of 9 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 08/15/2024.
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Location
| State | New Jersey |
| County | Gloucester |
| River/Stream | Oldmans Creek |
| Coordinates | 39.68255, -75.26685 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 425 ft |
Storage & Hydraulics
| NID Storage | 187 acre-ft |
| Normal Storage | 187 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 9 sq mi |
| Max Discharge | 1,845 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Division of Fish & Wildlife |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 08/15/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00105 |
| Federal ID | NJ00105 |
| More Info | State Dam Safety Program |