Allamuchy Pond Dam
Allamuchy Pond Dam is an earth dam located in Warren County, New Jersey. It carries a Significant hazard potential classification and has a poor condition assessment.
About Allamuchy Pond Dam
The primary purpose of Allamuchy Pond 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 Pequest River-tr.
The dam stands 13 feet tall and stretches 175 feet across, creates a reservoir covering 68 acres, has a storage capacity of 280 acre-feet, and collects water from a drainage area of 1 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 09/24/2024.
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Location
| State | New Jersey |
| County | Warren |
| River/Stream | Pequest River-tr |
| Coordinates | 40.91422, -74.81035 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 175 ft |
Storage & Hydraulics
| NID Storage | 280 acre-ft |
| Normal Storage | 280 acre-ft |
| Surface Area | 68 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 113 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Division of Parks and Forestry |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 09/24/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00501 |
| Federal ID | NJ00501 |
| More Info | State Dam Safety Program |