Kinnelon (maple) Dam
Kinnelon (maple) Dam is an earth dam located in Morris County, New Jersey, built in 1928. It carries a Significant hazard potential classification and has a poor condition assessment.
About Kinnelon (maple) Dam
The primary purpose of Kinnelon (maple) Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Borough Of Kinnelon (local government). It impounds the Peaquannock River-tr near Kinnelon.
The dam stands 14 feet tall and stretches 200 feet across, creates a reservoir covering 4 acres, has a storage capacity of 25 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1928, the structure is well-established, with more than 75 years of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 07/26/2023.
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Location
| State | New Jersey |
| County | Morris |
| Nearest City | Kinnelon |
| River/Stream | Peaquannock River-tr |
| Coordinates | 41.00643, -74.36787 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 200 ft |
| Year Completed | 1928 (98 years old) |
Storage & Hydraulics
| NID Storage | 25 acre-ft |
| Normal Storage | 25 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 338 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Borough of Kinnelon |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 07/26/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00590 |
| Federal ID | NJ00590 |
| More Info | State Dam Safety Program |