Woodwards Mill Dam
Woodwards Mill Dam is an earth dam located in Middlesex County, Massachusetts. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Woodwards Mill Dam
The primary purpose of Woodwards Mill Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Town Of Dunstable (local government). It impounds the Merrimack River near Dunstable.
The dam stands 15 feet tall and stretches 125 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 58 acre-feet, and collects water from a drainage area of 2 square miles.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 06/10/2021.
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Location
| State | Massachusetts |
| County | Middlesex |
| Nearest City | Dunstable |
| River/Stream | Merrimack River |
| Coordinates | 42.67173, -71.48554 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Length | 125 ft |
Storage & Hydraulics
| NID Storage | 58 acre-ft |
| Max Storage | 58 acre-ft |
| Normal Storage | 25 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 270 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Dunstable |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/10/2021 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MA01539 |
| Federal ID | MA01539 |
| More Info | State Dam Safety Program |