Macomb is a gravity dam located in Franklin County, New York, built in 1904. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 32 ft32 ft tall and 106 ft long, taller than 74% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Macomb
The primary purpose of Macomb is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. It impounds the Salmon River near Westville Center.
The dam stands 32 feet tall and stretches 106 feet across, creates a reservoir covering 14 acres, has a maximum storage capacity of 225 acre-feet, and collects water from a drainage area of 184 square miles. Completed in 1904, the structure is over a century old.
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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 07/13/2022.
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Location
| State | New York |
| County | Franklin |
| Nearest City | Westville Center |
| River/Stream | Salmon River |
| Coordinates | 44.87740, -74.30670 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 106 ft |
| Year Completed | 1904 (122 years old) |
Storage & Hydraulics
| NID Storage | 225 acre-ft |
| Max Storage | 225 acre-ft |
| Normal Storage | 225 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 184 sq mi |
| Max Discharge | 4,250 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner Type | Not Listed |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/13/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NY00462 |
| Federal ID | NY00462 |
| More Info | State Dam Safety Program |