Whitehall Reservoir Dam
Whitehall Reservoir Dam is an earth dam located in Middlesex County, Massachusetts. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Whitehall Reservoir Dam
The primary purpose of Whitehall Reservoir Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Ma Department Of Conservation & Recreation (state). It impounds the Whitehall Brook near Hopkinton.
The dam stands 8 feet tall and stretches 185 feet across, creates a reservoir covering 600 acres, has a maximum storage capacity of 3,145 acre-feet, and collects water from a drainage area of 4 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. An emergency action plan is in place for this dam. The most recent inspection on record was 11/18/2020.
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Location
| State | Massachusetts |
| County | Middlesex |
| Nearest City | Hopkinton |
| River/Stream | Whitehall Brook |
| Coordinates | 42.23576, -71.56553 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Length | 185 ft |
Storage & Hydraulics
| NID Storage | 3,145 acre-ft |
| Max Storage | 3,145 acre-ft |
| Normal Storage | 1,940 acre-ft |
| Surface Area | 600 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 570 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | MA Department of Conservation & Recreation |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/18/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA00445 |
| Federal ID | MA00445 |
| More Info | State Dam Safety Program |