Assabet
Massachusetts — Middlesex County — Assabet River
Location
| State | Massachusetts |
| County | Middlesex |
| River | Assabet River |
| Coordinates | 42.44010, -71.43200 |
Physical Characteristics
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 480 ft |
| NID Storage | 122 acre-ft |
| Max Storage | 122 acre-ft |
| Surface Area | 30 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Satisfactory |
| EAP Status | Yes |
| Last Inspection | June 16, 2022 |
| Inspection Frequency | 1 |
Dam Information
| Year Completed | 1921 |
| Primary Purpose | Hydroelectric |
| Dam Type | Masonry |
| Owner Type | Private |
| Owner | Acton Hydro Company, Inc. |
| Other Name | Powdermill Dam |
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.