Hopkinton Reservoir Dam
Massachusetts — Middlesex County — Indian Brook
Location
| State | Massachusetts |
| County | Middlesex |
| River | Indian Brook |
| Coordinates | 42.25854, -71.51290 |
Physical Characteristics
| NID Height | 58 ft |
| Dam Height | — |
| Dam Length | 1,616 ft |
| NID Storage | 6,850 acre-ft |
| Max Storage | 6,850 acre-ft |
| Surface Area | 192 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Satisfactory |
| EAP Status | Yes |
| Last Inspection | May 1, 2024 |
| Inspection Frequency | 2 |
Dam Information
| Year Completed | 1891 |
| Primary Purpose | Recreation |
| 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.