Riverdale Mills
Massachusetts — Worcester County — Blackstone River
Location
| State | Massachusetts |
| County | Worcester |
| River | Blackstone River |
| Coordinates | 42.13880, -71.64020 |
Physical Characteristics
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 142 ft |
| NID Storage | 89 acre-ft |
| Max Storage | 89 acre-ft |
| Surface Area | 12 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Satisfactory |
| EAP Status | Not Required |
| Last Inspection | August 2, 2022 |
| Inspection Frequency | 3 |
Dam Information
| Year Completed | 1957 |
| Primary Purpose | Hydroelectric |
| Dam Type | Concrete |
| Owner Type | Private |
| Owner | James M. Knott |
| Other Name | Knott 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.