Hailsboro Mill #3 Dam
Hailsboro Mill #3 Dam is a buttress dam located in St. Lawrence County, New York, built in 1910. It carries a Significant hazard potential classification.
About Hailsboro Mill #3 Dam
The primary purpose of Hailsboro Mill #3 Dam is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Central Rivers Power, Llc (private). It impounds the Oswegatchie River near Gouverneur.
The dam stands 16 feet tall and stretches 68 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 35 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1910, the structure is over a century old.
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. The most recent inspection on record was 07/15/2008. That was over 17 years ago.
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Location
| State | New York |
| County | St. Lawrence |
| Nearest City | Gouverneur |
| River/Stream | Oswegatchie River |
| Coordinates | 44.31333, -75.44917 |
Physical Characteristics
| Dam Type | Buttress |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 68 ft |
| Year Completed | 1910 (116 years old) |
Storage & Hydraulics
| NID Storage | 35 acre-ft |
| Max Storage | 35 acre-ft |
| Normal Storage | 21 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 800 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Central Rivers Power, LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Last Inspection | 07/15/2008 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NY00293 |
| Federal ID | NY00293 |
| More Info | State Dam Safety Program |