Jefferson Lake Dam is an earth dam located in Sussex County, New Jersey. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 15 ft15 ft tall and 450 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Jefferson Lake Dam
The primary purpose of Jefferson Lake 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 Lubbers Run-tr.
The dam stands 15 feet tall and stretches 450 feet across, creates a reservoir covering 50 acres, has a storage capacity of 250 acre-feet, and collects water from a drainage area of 5 square miles.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 04/11/2005. That was over 21 years ago.
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Location
| State | New Jersey |
| County | Sussex |
| River/Stream | Lubbers Run-tr |
| Coordinates | 40.92668, -74.73168 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 450 ft |
Storage & Hydraulics
| NID Storage | 250 acre-ft |
| Normal Storage | 250 acre-ft |
| Surface Area | 50 acres |
| Drainage Area | 5 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | Division of Parks and Forestry |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 04/11/2005 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NJ00326 |
| Federal ID | NJ00326 |
| More Info | State Dam Safety Program |