Deerfield No. 2 is a concrete dam located in Franklin County, Massachusetts, built in 1913. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 76 ft76 ft tall and 447 ft long, taller than 97% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Deerfield No. 2
The primary purpose of Deerfield No. 2 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 Great River Hydro, LLC (private). It impounds the Deerfield River near Conway.
The dam stands 76 feet tall and stretches 447 feet across, creates a reservoir covering 63 acres, has a maximum storage capacity of 1,830 acre-feet, and collects water from a drainage area of 508 square miles. Completed in 1913, 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 09/14/2022.
At 76 feet, this dam is taller than 97% of all dams in the United States.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Massachusetts |
| County | Franklin |
| Nearest City | Conway |
| River/Stream | Deerfield River |
| Coordinates | 42.57321, -72.70695 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 76 ft |
| Dam Height | 76 ft |
| Dam Length | 447 ft |
| Year Completed | 1913 (113 years old) |
Storage & Hydraulics
| NID Storage | 1,830 acre-ft |
| Max Storage | 1,830 acre-ft |
| Normal Storage | 1,830 acre-ft |
| Surface Area | 63 acres |
| Drainage Area | 508 sq mi |
| Max Discharge | 31,200 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Great River Hydro, LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/14/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MA00464 |
| Federal ID | MA00464 |
| More Info | State Dam Safety Program |