Emma Lake Dam
Emma Lake Dam is an earth dam located in Morris County, New Jersey. It carries a Low hazard potential classification and has a poor condition assessment.
About Emma Lake Dam
The primary purpose of Emma 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 Antonio G. Ginard (private). It impounds the Rockaway River.
The dam stands 10 feet tall and stretches 175 feet across, creates a reservoir covering 20 acres, has a maximum storage capacity of 90 acre-feet, and collects water from a drainage area of 0 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 04/26/2004. That was over 21 years ago.
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Location
| State | New Jersey |
| County | Morris |
| River/Stream | Rockaway River |
| Coordinates | 40.98258, -74.48108 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 175 ft |
Storage & Hydraulics
| NID Storage | 90 acre-ft |
| Max Storage | 90 acre-ft |
| Normal Storage | 72 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 10 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Antonio G. Ginard |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 04/26/2004 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NJ00730 |
| Federal ID | NJ00730 |
| More Info | State Dam Safety Program |