Quabbin Winsor Dam
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Massachusetts |
| County | Hampshire |
| Nearest City | Ware |
| River/Stream | Swift River |
| Coordinates | 42.28130, -72.34583 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 170 ft |
| Dam Length | 2,640 ft |
| Year Completed | 1939 (87 years old) |
Storage & Hydraulics
| NID Storage | 1,810,000 acre-ft |
| Max Storage | 1,810,000 acre-ft |
| Normal Storage | 1,265,200 acre-ft |
| Surface Area | 25,216 acres |
| Drainage Area | 187 sq mi |
| Max Discharge | 27,500 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | MA Department of Conservation & Recreation |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/31/2022 |
| Emergency Action Plan | Yes |