Harrisville Dam
Harrisville Dam is an earth dam located in Burlington County, New Jersey, built in 1932. It carries a Significant hazard potential classification and has a poor condition assessment.
About Harrisville Dam
The primary purpose of Harrisville 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 Parks And Forestry (state). It impounds the Wading River.
The dam stands 13 feet tall and stretches 350 feet across, creates a reservoir covering 40 acres, has a storage capacity of 269 acre-feet, and collects water from a drainage area of 64 square miles. Completed in 1932, 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 08/14/2024.
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Location
| State | New Jersey |
| County | Burlington |
| River/Stream | Wading River |
| Coordinates | 39.66393, -74.52327 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 350 ft |
| Year Completed | 1932 (94 years old) |
Storage & Hydraulics
| NID Storage | 269 acre-ft |
| Normal Storage | 269 acre-ft |
| Surface Area | 40 acres |
| Drainage Area | 64 sq mi |
| Max Discharge | 3,940 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Division of Parks and Forestry |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 08/14/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00045 |
| Federal ID | NJ00045 |
| More Info | State Dam Safety Program |