Wachusett Reservoir Dam
NASHUA RIVER·
Worcester, Massachusetts·
Built 1906·
Masonry·
114 ft tall
Physical Details
| Dam Height | 114 ft (taller than 99.2% in MA) |
| Dam Length | 944 ft |
| Dam Type | Masonry |
| Max Storage | 250.0K acre-ft |
| Normal Storage | 187.0K acre-ft |
| Surface Area | 4,160 acres |
| Drainage Area | 121 sq mi |
| Year Completed | 1906 (120 years old) |
| NID ID | MA00886 |
Safety Information
High Hazard
Loss of human life is likely if the dam fails
Emergency Action Plan: Yes
Last Inspection: July 27, 2016
State Regulated: Yes
Regulatory Agency: DEPARTMENT OF CONSERVATION AND RECREATION
Ownership
DCR - DEPT. OF CONSERVATION & RECREATION
State Government
Nearby Dams
Lancaster Mill Pond Dam
Worcester, MA
Significant Hazard 26 ftWachusett Reservoir South Dike
Worcester, MA
High Hazard 45 ftCoachlace Pond Dam
Worcester, MA
Significant Hazard 13 ftMossy Pond Dam
Worcester, MA
Significant Hazard 10 ftMossy Pond Dike
Worcester, MA
Significant Hazard 10 ftWachusett Reservoir North Dike
Worcester, MA
High Hazard 85 ftLester G. Ross Dam
Worcester, MA
High Hazard 44 ftMt. Pleasant Pond Dam
Worcester, MA
Significant Hazard 13 ftFrequently Asked Questions
What is the hazard classification of Wachusett Reservoir Dam?
Wachusett Reservoir Dam is classified as High Hazard. Loss of human life is likely if the dam fails.
Who owns Wachusett Reservoir Dam?
Wachusett Reservoir Dam is owned by DCR - DEPT. OF CONSERVATION & RECREATION (State Government).
When was Wachusett Reservoir Dam last inspected?
Wachusett Reservoir Dam was last inspected on July 27, 2016.
When was Wachusett Reservoir Dam built?
Wachusett Reservoir Dam was completed in 1906, making it 120 years old.
Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.