Factory Pond Dam
Factory Pond Dam is an earth dam located in Middlesex County, Massachusetts, built in 1873. It carries a Significant hazard potential classification and has a poor condition assessment.
About Factory Pond Dam
The primary purpose of Factory Pond 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 Holliston (local government). It impounds the Jar Brook/bogastow Brook near Holliston.
The dam stands 13 feet tall and stretches 135 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 50 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1873, the structure is one of the older dams in the region, with over a century and a half of service.
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. An emergency action plan is in place for this dam. The most recent inspection on record was 10/13/2017.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Massachusetts |
| County | Middlesex |
| Nearest City | Holliston |
| River/Stream | Jar Brook/bogastow Brook |
| Coordinates | 42.20936, -71.41783 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Length | 135 ft |
| Year Completed | 1873 (153 years old) |
Storage & Hydraulics
| NID Storage | 50 acre-ft |
| Max Storage | 50 acre-ft |
| Normal Storage | 18 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 5 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Holliston |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 10/13/2017 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA02952 |
| Federal ID | MA02952 |
| More Info | State Dam Safety Program |