Stony Lake Dam
Stony Lake Dam is a masonry dam located in Sussex County, New Jersey, built in 1926. It carries a Low hazard potential classification and has a fair condition assessment.
About Stony Lake Dam
The primary purpose of Stony 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 Stony Brook.
The dam stands 17 feet tall and stretches 142 feet across, creates a reservoir covering 18 acres, has a storage capacity of 131 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1926, the structure is well-established, with more than 75 years of service.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 07/05/2005. That was over 20 years ago.
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Location
| State | New Jersey |
| County | Sussex |
| River/Stream | Stony Brook |
| Coordinates | 41.20220, -74.77428 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 142 ft |
| Year Completed | 1926 (100 years old) |
Storage & Hydraulics
| NID Storage | 131 acre-ft |
| Normal Storage | 131 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 1 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | Division of Parks and Forestry |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 07/05/2005 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NJ00263 |
| Federal ID | NJ00263 |
| More Info | State Dam Safety Program |