Lake Mattawa Dam South Dam
Key Takeaway
Lake Mattawa Dam South Dam is classified as significant hazard in Massachusetts. Its primary use is recreation. 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 | 287 ft |
| Dam Type | Earth |
| Max Storage | 928 acre-ft |
| Normal Storage | 438 acre-ft |
| Surface Area | 110 acres |
| Drainage Area | 2 sq mi |
| NID ID | MA00502 |
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
TOWN OF ORANGE, BOARD OF SELECTMEN
Local Government
Nearby Dams
Lake Mattawa North Dam
Franklin, MA
Significant Hazard 15 ftVorces Pond Dam
Franklin, MA
Significant Hazard 12 ftMahar Regional School Dam
Franklin, MA
Significant Hazard 10 ftNew Home
Franklin, MA
Low Hazard 9 ftHaskins Pond Dam
Franklin, MA
Significant Hazard 15 ftLake Rohunta Dam
Worcester, MA
Low Hazard 24 ftWhite Pond Dam
Worcester, MA
Low Hazard 14 ftWheeler Pond Dam
Franklin, MA
Low Hazard 17 ftFrequently Asked Questions
What is the hazard classification of Lake Mattawa Dam South Dam?
Lake Mattawa Dam South 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 Lake Mattawa Dam South Dam?
Lake Mattawa Dam South Dam is owned by TOWN OF ORANGE, BOARD OF SELECTMEN (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Lake Mattawa Dam South Dam?
Lake Mattawa Dam South Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lake Mattawa Dam South Dam?
Lake Mattawa Dam South 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 Lake Mattawa Dam South Dam last inspected?
Lake Mattawa Dam South Dam was last inspected on October 5, 2016. Inspection dates indicate when a formal review occurred, not the results of that inspection.