Branchville Reservoir Dam
Branchville Reservoir Dam is an earth dam located in Sussex County, New Jersey, built in 1934. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Branchville Reservoir Dam
The primary purpose of Branchville Reservoir Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Borough Of Branchville (local government). It impounds the Dry Brook.
The dam stands 22 feet tall and stretches 690 feet across, creates a reservoir covering 4 acres, has a storage capacity of 21 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1934, 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 12/17/2024.
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Location
| State | New Jersey |
| County | Sussex |
| River/Stream | Dry Brook |
| Coordinates | 41.19542, -74.73247 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 690 ft |
| Year Completed | 1934 (92 years old) |
Storage & Hydraulics
| NID Storage | 21 acre-ft |
| Normal Storage | 21 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 1 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Borough of Branchville |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 12/17/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00009 |
| Federal ID | NJ00009 |
| More Info | State Dam Safety Program |