North Lake B Dam
Key Takeaway
North Lake B Dam is classified as low hazard in New York. It was completed in 1850 and is 176 years old. Its primary use is navigation.
Physical Details
| Dam Height | 35 ft (taller than 83.6% in NY) |
| Dam Length | 575 ft |
| Dam Type | Earth |
| Max Storage | 6.2K acre-ft |
| Normal Storage | 5.5K acre-ft |
| Surface Area | 442 acres |
| Max Discharge | 5,590 cfs |
| Year Completed | 1850 (176 years old) |
| NID ID | NY00326 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
New York State Canal Corporation
State Government
Nearby Dams
North Lake C Dam
Herkimer, NY
Low Hazard 27 ftNorth Lake A Dam (Spillway)
Herkimer, NY
Low Hazard 15 ftSand Lake Dam
Herkimer, NY
Low Hazard 30 ftSecond Bisby Lake Dam
Herkimer, NY
Low Hazard 8 ftSouth Lake Dam
Herkimer, NY
Low Hazard 30 ftWoodhull Lake Dam
Herkimer, NY
Low Hazard 25 ftMaple Lake Dam
Herkimer, NY
Low Hazard 12 ftOtter Lake Dam
Oneida, NY
Low Hazard 8 ftFrequently Asked Questions
What is the hazard classification of North Lake B Dam?
North Lake B Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates North Lake B Dam?
North Lake B Dam is owned by New York State Canal Corporation (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was North Lake B Dam built?
North Lake B Dam was completed in 1850, making it 176 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 North Lake B Dam?
North Lake B Dam serves the following purposes: Navigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is North Lake B Dam?
North Lake B Dam has a dam height of 35 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 North Lake B Dam last inspected?
North Lake B Dam was last inspected on October 7, 1995. Inspection dates indicate when a formal review occurred, not the results of that inspection.