Hartley Saw Mill Pond Dam
Key Takeaway
Hartley Saw Mill Pond Dam is classified as significant hazard in Massachusetts. It was completed in 1920 and is 106 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 10 ft (taller than 18% in MA) |
| Dam Length | 240 ft |
| Dam Type | Earth |
| Max Storage | 60 acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 2 sq mi |
| Year Completed | 1920 (106 years old) |
| NID ID | MA00384 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
HARTLEY SAW MILL PRESERVATION PROJECT, INC.
Private
Nearby Dams
Freeman Bog Dam
Plymouth, MA
Low Hazard 12 ftNew Bedford Reservoir Dam
Bristol, MA
Significant Hazard 10 ftLeonards Pond Dam
Plymouth, MA
Significant Hazard 15 ftLeonards Pond Dike
Plymouth, MA
Significant Hazard 5 ftMattapoisett River Dam
Plymouth, MA
Significant Hazard 10 ftBrown Pond Dam
Bristol, MA
Significant Hazard 7 ftStillwater Pond Dam
Bristol, MA
Low Hazard 12 ftTremont Mill Pond
Plymouth, MA
High Hazard 15 ftFrequently Asked Questions
What is the hazard classification of Hartley Saw Mill Pond Dam?
Hartley Saw Mill Pond Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Hartley Saw Mill Pond Dam?
Hartley Saw Mill Pond Dam is owned by HARTLEY SAW MILL PRESERVATION PROJECT, INC. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hartley Saw Mill Pond Dam built?
Hartley Saw Mill Pond Dam was completed in 1920, making it 106 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Hartley Saw Mill Pond Dam?
Hartley Saw Mill Pond Dam serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Hartley Saw Mill Pond Dam?
Hartley Saw Mill Pond Dam has a dam height of 10 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Hartley Saw Mill Pond Dam last inspected?
Hartley Saw Mill Pond Dam was last inspected on August 20, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.