Threemile Pond Dam
Significant HazardFair ConditionEmergency Action Plan: Yes
Location
| State | Massachusetts |
| County | Berkshire |
| Nearest City | Sheffield |
| River/Stream | Ironwork Brook |
| Coordinates | 42.13545, -73.30805 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Length | 980 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 1,240 acre-ft |
| Max Storage | 1,240 acre-ft |
| Normal Storage | 340 acre-ft |
| Surface Area | 83 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 140 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | MA Department of Fish and Game |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 05/13/2020 |
| Emergency Action Plan | Yes |