Brierly Pond Main Dam
Brierly Pond Main Dam is an earth dam located in Worcester County, Massachusetts. It carries a Significant hazard potential classification and has a poor condition assessment.
About Brierly Pond Main Dam
The primary purpose of Brierly Pond Main 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 Transportation (state). It impounds the Singletary Brook (tributary To Blackstone River) near Millbury.
The dam stands 10 feet tall and stretches 260 feet across, creates a reservoir covering 20 acres, has a maximum storage capacity of 132 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 06/29/2018.
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Location
| State | Massachusetts |
| County | Worcester |
| Nearest City | Millbury |
| River/Stream | Singletary Brook (tributary To Blackstone River) |
| Coordinates | 42.17639, -71.77470 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Length | 260 ft |
Storage & Hydraulics
| NID Storage | 132 acre-ft |
| Max Storage | 132 acre-ft |
| Normal Storage | 97 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 4 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | MA Department of Transportation |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 06/29/2018 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MA00143 |
| Federal ID | MA00143 |
| More Info | State Dam Safety Program |