Lake Hawthorne Dam
Lake Hawthorne Dam is an earth dam located in Orange County, New York, built in 1927. It carries a Low hazard potential classification.
About Lake Hawthorne Dam
The primary purpose of Lake Hawthorne Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Fini Brothers (private). It impounds the Tr-neversink River near Port Jervis.
The dam stands 10 feet tall and stretches 710 feet across, creates a reservoir covering 25 acres, has a maximum storage capacity of 72 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1927, 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 06/02/2023.
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Location
| State | New York |
| County | Orange |
| Nearest City | Port Jervis |
| River/Stream | Tr-neversink River |
| Coordinates | 41.37556, -74.62722 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 710 ft |
| Year Completed | 1927 (99 years old) |
Storage & Hydraulics
| NID Storage | 72 acre-ft |
| Max Storage | 72 acre-ft |
| Normal Storage | 65 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 70 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Fini Brothers |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 06/02/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NY00492 |
| Federal ID | NY00492 |
| More Info | State Dam Safety Program |