Lost Lake
Key Takeaway
Lost Lake is classified as low hazard in Colorado. It was completed in 1922 and is 104 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 12 ft (taller than 11% in CO) |
| Dam Length | 280 ft |
| Dam Type | Earth |
| Max Storage | 126 acre-ft |
| Normal Storage | 109 acre-ft |
| Surface Area | 26 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 44 cfs |
| Year Completed | 1922 (104 years old) |
| NID ID | CO00872 |
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
BEVAN, TY
Private
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Significant Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Lost Lake?
Lost 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 Lost Lake?
Lost Lake is owned by BEVAN, TY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lost Lake built?
Lost Lake was completed in 1922, making it 104 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 Lost Lake?
Lost Lake serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lost Lake?
Lost Lake has a dam height of 12 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 Lost Lake last inspected?
Lost Lake was last inspected on July 23, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.