Stony Brook #4 (curlis Lake) Dam
Stony Brook #4 (curlis Lake) Dam is an earth dam located in Mercer County, New Jersey, built in 1959. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Stony Brook #4 (curlis Lake) Dam
The primary purpose of Stony Brook #4 (curlis Lake) Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by County Of Mercer Park Commission (local government). It impounds the Stony Brook-tr.
The dam stands 24 feet tall and stretches 340 feet across, creates a reservoir covering 18 acres, has a maximum storage capacity of 285 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1959, the structure is well into its service life at over 50 years old.
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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 04/15/2024.
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Location
| State | New Jersey |
| County | Mercer |
| River/Stream | Stony Brook-tr |
| Coordinates | 40.32737, -74.77117 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 340 ft |
| Year Completed | 1959 (67 years old) |
Storage & Hydraulics
| NID Storage | 285 acre-ft |
| Max Storage | 285 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 1 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | County of Mercer Park Commission |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/15/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NJ00390 |
| Federal ID | NJ00390 |
| More Info | State Dam Safety Program |