Seeley's Pond Dam
Seeley's Pond Dam is a stone dam located in Union County, New Jersey, built in 1928. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Seeley's Pond Dam
The primary purpose of Seeley's Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by County Of Union (local government). It impounds the Green Brook.
The dam stands 20 feet tall and stretches 850 feet across, creates a reservoir covering 4 acres, has a storage capacity of 101 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1928, 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 02/09/2024.
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Location
| State | New Jersey |
| County | Union |
| River/Stream | Green Brook |
| Coordinates | 40.66728, -74.40328 |
Physical Characteristics
| Dam Type | Stone |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 850 ft |
| Year Completed | 1928 (98 years old) |
Storage & Hydraulics
| NID Storage | 101 acre-ft |
| Normal Storage | 101 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 5 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | County of Union |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 02/09/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00368 |
| Federal ID | NJ00368 |
| More Info | State Dam Safety Program |