Hartley Saw Mill Pond Dam
Hartley Saw Mill Pond Dam is a stone dam located in Plymouth County, Massachusetts. It carries a Low hazard potential classification and has a fair condition assessment.
About Hartley Saw Mill Pond Dam
The primary purpose of Hartley Saw Mill Pond Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Hartley Saw Mill Preservation Project, Inc. (private). It impounds the Unnamed Tributary To Mattapoisett River near Rochester.
The dam stands 10 feet tall and stretches 140 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 60 acre-feet, and collects water from a drainage area of 2 square miles.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 04/04/2022.
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Location
| State | Massachusetts |
| County | Plymouth |
| Nearest City | Rochester |
| River/Stream | Unnamed Tributary To Mattapoisett River |
| Coordinates | 41.74341, -70.86829 |
Physical Characteristics
| Dam Type | Stone |
| NID Height | 10 ft |
| Dam Length | 140 ft |
Storage & Hydraulics
| NID Storage | 60 acre-ft |
| Max Storage | 60 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 317 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Hartley Saw Mill Preservation Project, Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 04/04/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MA00384 |
| Federal ID | MA00384 |
| More Info | State Dam Safety Program |