Lake Cochichewick Outlet Dam
Key Takeaway
Lake Cochichewick Outlet Dam is classified as high hazard in Massachusetts. It was completed in 1865 and is 161 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 13 ft (taller than 39.5% in MA) |
| Dam Length | 100 ft |
| Dam Type | Masonry |
| Max Storage | 8.1K acre-ft |
| Normal Storage | 6.3K acre-ft |
| Surface Area | 575 acres |
| Drainage Area | 5 sq mi |
| Year Completed | 1865 (161 years old) |
| NID ID | MA00278 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
TOWN OF NORTH ANDOVER, BOARD OF SELECTMEN
Local Government
Nearby Dams
Osgood Pond Dam
Essex, MA
Significant Hazard 28 ftCochichewick River Dam
Essex, MA
Significant Hazard 13 ftFarnums Mill Pond Dam
Essex, MA
Low Hazard 14 ftGreat Stone
Essex, MA
Low Hazard 38 ftStiles Pond Dam
Essex, MA
Significant Hazard 10 ftSearles Pond Dam
Essex, MA
Significant Hazard 8 ftJohnsons Pond Dam
Essex, MA
Significant Hazard 9 ftBrackett Pond Dam
Essex, MA
Significant Hazard 13 ftFrequently Asked Questions
What is the hazard classification of Lake Cochichewick Outlet Dam?
Lake Cochichewick Outlet Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Lake Cochichewick Outlet Dam?
Lake Cochichewick Outlet Dam is owned by TOWN OF NORTH ANDOVER, BOARD OF SELECTMEN (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Cochichewick Outlet Dam built?
Lake Cochichewick Outlet Dam was completed in 1865, making it 161 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 Lake Cochichewick Outlet Dam?
Lake Cochichewick Outlet Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lake Cochichewick Outlet Dam?
Lake Cochichewick Outlet Dam has a dam height of 13 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 Cochichewick Outlet Dam last inspected?
Lake Cochichewick Outlet Dam was last inspected on September 26, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.