Quabbin Winsor Dam
Massachusetts — Hampshire County — Swift River
Location
| State | Massachusetts |
| County | Hampshire |
| River | Swift River |
| Coordinates | 42.28130, -72.34583 |
Physical Characteristics
| NID Height | 170 ft |
| Dam Height | — |
| Dam Length | 2,640 ft |
| NID Storage | 1,810,000 acre-ft |
| Max Storage | 1,810,000 acre-ft |
| Surface Area | 25,216 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Satisfactory |
| EAP Status | Yes |
| Last Inspection | October 31, 2022 |
| Inspection Frequency | 2 |
Dam Information
| Year Completed | 1939 |
| Primary Purpose | Water Supply |
| Dam Type | Earth |
| Owner Type | State |
| Owner | MA Department of Conservation & Recreation |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.