Lake Lackawanna Dam
Lake Lackawanna Dam is an earth dam located in Sussex County, New Jersey, built in 1910. It carries a Significant hazard potential classification and has a fair condition assessment.
About Lake Lackawanna Dam
The primary purpose of Lake Lackawanna Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lake Lackawanna Investment Company (private). It impounds the Lubbers Run near Byram.
The dam stands 15 feet tall and stretches 310 feet across, creates a reservoir covering 114 acres, has a maximum storage capacity of 988 acre-feet, and collects water from a drainage area of 13 square miles. Completed in 1910, the structure is over a century old.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 12/13/2024.
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Location
| State | New Jersey |
| County | Sussex |
| Nearest City | Byram |
| River/Stream | Lubbers Run |
| Coordinates | 40.94573, -74.70222 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 310 ft |
| Year Completed | 1910 (116 years old) |
Storage & Hydraulics
| NID Storage | 988 acre-ft |
| Max Storage | 988 acre-ft |
| Normal Storage | 410 acre-ft |
| Surface Area | 114 acres |
| Drainage Area | 13 sq mi |
| Max Discharge | 2,745 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Lake Lackawanna Investment Company |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 12/13/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00817 |
| Federal ID | NJ00817 |
| More Info | State Dam Safety Program |