Hawthorne Lake Dam
Hawthorne Lake Dam is an earth dam located in Sussex County, New Jersey, built in 1900. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Hawthorne Lake Dam
The primary purpose of Hawthorne Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Hawthorne Park Club (private). It impounds the Wallkill-tr near Ogdensburg.
The dam stands 8 feet tall and stretches 165 feet across, creates a reservoir covering 35 acres, has a maximum storage capacity of 167 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1900, the structure is over a century 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. An emergency action plan is in place for this dam. The most recent inspection on record was 10/09/2020.
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Location
| State | New Jersey |
| County | Sussex |
| Nearest City | Ogdensburg |
| River/Stream | Wallkill-tr |
| Coordinates | 41.05785, -74.59245 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 165 ft |
| Year Completed | 1900 (126 years old) |
Storage & Hydraulics
| NID Storage | 167 acre-ft |
| Max Storage | 167 acre-ft |
| Normal Storage | 149 acre-ft |
| Surface Area | 35 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 15 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Hawthorne Park Club |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/09/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ01036 |
| Federal ID | NJ01036 |
| More Info | State Dam Safety Program |