French Lake Dam is an earth dam located in Warren County, New Jersey, built in 1945. It carries a Low hazard potential classification.
Dam profile
NID height · 10 ft10 ft tall and 440 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 French Lake Dam
The primary purpose of French Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Leo Orlandi (private). It impounds the Bear Brook-tr near Johnsonburg.
The dam stands 10 feet tall and stretches 440 feet across, creates a reservoir covering 23 acres, has a maximum storage capacity of 138 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1945, 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. The most recent inspection on record was 10/05/2001. That was over 25 years ago.
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Location
| State | New Jersey |
| County | Warren |
| Nearest City | Johnsonburg |
| River/Stream | Bear Brook-tr |
| Coordinates | 40.96220, -74.89452 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 440 ft |
| Year Completed | 1945 (81 years old) |
Storage & Hydraulics
| NID Storage | 138 acre-ft |
| Max Storage | 138 acre-ft |
| Normal Storage | 138 acre-ft |
| Surface Area | 23 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 370 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Leo Orlandi |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/05/2001 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NJ00180 |
| Federal ID | NJ00180 |
| More Info | State Dam Safety Program |