Woronoco - North Dam is a concrete dam located in Hampden County, Massachusetts, built in 1938. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 25 ft25 ft tall and 962 ft long, taller than 50% 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 Woronoco - North Dam
The primary purpose of Woronoco - North 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 Woronoco Hydro, LLC (private). It impounds the Westfield River near Westfield.
The dam stands 25 feet tall and stretches 962 feet across, creates a reservoir covering 43 acres, has a maximum storage capacity of 1,830 acre-feet, and collects water from a drainage area of 346 square miles. Completed in 1938, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 09/05/2019.
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Location
| State | Massachusetts |
| County | Hampden |
| Nearest City | Westfield |
| River/Stream | Westfield River |
| Coordinates | 42.16680, -72.82920 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 962 ft |
| Year Completed | 1938 (88 years old) |
Storage & Hydraulics
| NID Storage | 1,830 acre-ft |
| Max Storage | 1,830 acre-ft |
| Normal Storage | 1,830 acre-ft |
| Surface Area | 43 acres |
| Drainage Area | 346 sq mi |
| Max Discharge | 10,500 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Woronoco Hydro, LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/05/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MA00737 |
| Federal ID | MA00737S001 |
| More Info | State Dam Safety Program |