Lily Lake Dam
Key Takeaway
Lily Lake Dam is classified as high hazard in Colorado. It was completed in 1913 and is 113 years old. Its primary use is fish and wildlife pond. 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 | 15 ft (taller than 20.1% in CO) |
| Dam Length | 240 ft |
| Dam Type | Earth |
| Max Storage | 91 acre-ft |
| Normal Storage | 0 acre-ft |
| Year Completed | 1913 (113 years old) |
| NID ID | CO02364 |
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
DOI NPS
Federal Government
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Low Hazard 17 ftFrequently Asked Questions
What is the hazard classification of Lily Lake Dam?
Lily 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 Lily Lake Dam?
Lily Lake Dam is owned by DOI NPS (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lily Lake Dam built?
Lily Lake Dam was completed in 1913, making it 113 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 Lily Lake Dam?
Lily Lake Dam serves the following purposes: Fish And Wildlife Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lily Lake Dam?
Lily Lake Dam has a dam height of 15 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 Lily Lake Dam last inspected?
Lily Lake Dam was last inspected on September 1, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.