Brierly Pond Dike
Brierly Pond Dike is an earth dam located in Worcester County, Massachusetts. It carries a High hazard potential classification and has a poor condition assessment.
About Brierly Pond Dike
The primary purpose of Brierly Pond Dike is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by W.w. Windle Company (private). It impounds the Singletary Brook near Millbury.
The dam stands 8 feet tall and stretches 225 feet across, creates a reservoir covering 20 acres, has a maximum storage capacity of 130 acre-feet, and collects water from a drainage area of 4 square miles.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. Notably, no emergency action plan is currently on file for this high-hazard dam. The most recent inspection on record was 04/27/2023.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Massachusetts dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Massachusetts |
| County | Worcester |
| Nearest City | Millbury |
| River/Stream | Singletary Brook |
| Coordinates | 42.17767, -71.77440 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Length | 225 ft |
Storage & Hydraulics
| NID Storage | 130 acre-ft |
| Max Storage | 130 acre-ft |
| Normal Storage | 95 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 18 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | W.W. Windle Company |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 04/27/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MA03479 |
| Federal ID | MA00143S001 |
| More Info | State Dam Safety Program |