Knob Lake Dam
Key Takeaway
Knob Lake Dam is classified as high hazard in Indiana. It was completed in 1940 and is 86 years old. Its primary use is recreation. 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 | 27 ft (taller than 51.4% in IN) |
| Dam Length | 420 ft |
| Dam Type | Earth |
| Max Storage | 131 acre-ft |
| Normal Storage | 65 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 371 cfs |
| Year Completed | 1940 (86 years old) |
| NID ID | IN00332 |
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
DEPARTMENT OF NATURAL RESOURCES
State Government
Nearby Dams
Camp Pyoca Lake Dam
Jackson, IN
High Hazard 31 ftBurgess Lake
Jackson, IN
Low Hazard 26 ftLake & Forest Club Dam
Jackson, IN
High Hazard 40 ftStarve Hollow Lake Dam
Jackson, IN
High Hazard 39 ftHillview Lake Dam
Jackson, IN
High Hazard 31 ftTimber Lake Dam
Jackson, IN
High Hazard 40 ftCharisma Lake Dam
Jackson, IN
Significant Hazard 40 ftSwan Pond
Jackson, IN
Significant Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Knob Lake Dam?
Knob Lake 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 Knob Lake Dam?
Knob Lake Dam is owned by DEPARTMENT OF NATURAL RESOURCES (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Knob Lake Dam built?
Knob Lake Dam was completed in 1940, making it 86 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 Knob Lake Dam?
Knob Lake 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 Knob Lake Dam?
Knob Lake Dam has a dam height of 27 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 Knob Lake Dam last inspected?
Knob Lake Dam was last inspected on October 4, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.