Holbrook Mill Pond Dam is an earth dam located in Worcester County, Massachusetts. It carries a Significant hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 16 ft16 ft tall and 130 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Holbrook Mill Pond Dam
Holbrook Mill Pond Dam is a dam in Worcester, Massachusetts. The dam is owned by Unknown. It impounds the Singletary Brook near Millbury.
The dam stands 16 feet tall and stretches 130 feet across, creates a reservoir covering 0 acres, has a maximum storage capacity of 7 acre-feet, and collects water from a drainage area of 5 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 09/14/2021.
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Location
| State | Massachusetts |
| County | Worcester |
| Nearest City | Millbury |
| River/Stream | Singletary Brook |
| Coordinates | 42.18128, -71.76781 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Length | 130 ft |
Storage & Hydraulics
| NID Storage | 7 acre-ft |
| Max Storage | 7 acre-ft |
| Normal Storage | 3 acre-ft |
| Surface Area | 0 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 320 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | Unknown |
| Owner Type | Not Listed |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 09/14/2021 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MA02832 |
| Federal ID | MA02832 |
| More Info | State Dam Safety Program |