Deerfield No. 5 - Dunbar
Deerfield No. 5 - Dunbar is a concrete dam located in Berkshire County, Massachusetts, built in 1993. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Deerfield No. 5 - Dunbar
The primary purpose of Deerfield No. 5 - Dunbar 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 Dunbar Brook near Florida.
The dam stands 29 feet tall and stretches 160 feet across, creates a reservoir covering 38 acres, has a maximum storage capacity of 818 acre-feet, and collects water from a drainage area of 11 square miles. Completed in 1993, the structure is 33 years 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 08/04/2022.
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Location
| State | Massachusetts |
| County | Berkshire |
| Nearest City | Florida |
| River/Stream | Dunbar Brook |
| Coordinates | 42.70460, -72.95410 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 160 ft |
| Year Completed | 1993 (33 years old) |
Storage & Hydraulics
| NID Storage | 818 acre-ft |
| Max Storage | 818 acre-ft |
| Normal Storage | 818 acre-ft |
| Surface Area | 38 acres |
| Drainage Area | 11 sq mi |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Great River Hydro, LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/04/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MA00840 |
| Federal ID | MA00840S004 |
| More Info | State Dam Safety Program |