Happy Hollow Lake
Key Takeaway
Happy Hollow Lake is classified as low hazard in Kansas. It was completed in 1936 and is 90 years old. Its primary use is recreation.
Physical Details
| Dam Height | 32 ft (taller than 79.1% in KS) |
| Dam Length | 550 ft |
| Dam Type | Earth |
| Max Storage | 100 acre-ft |
| Normal Storage | 65 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1936 (90 years old) |
| NID ID | KS04476 |
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
LEAVENWORTH COUNTY
Local Government
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Low Hazard 39 ftFrequently Asked Questions
What is the hazard classification of Happy Hollow Lake?
Happy Hollow Lake 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 Happy Hollow Lake?
Happy Hollow Lake is owned by LEAVENWORTH COUNTY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Happy Hollow Lake built?
Happy Hollow Lake was completed in 1936, making it 90 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 Happy Hollow Lake?
Happy Hollow Lake 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 Happy Hollow Lake?
Happy Hollow Lake has a dam height of 32 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 Happy Hollow Lake last inspected?
Happy Hollow Lake was last inspected on January 20, 2005. Inspection dates indicate when a formal review occurred, not the results of that inspection.