Three Mile
Key Takeaway
Three Mile is classified as low hazard in Colorado. It was completed in 1934 and is 92 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 16 ft (taller than 23.3% in CO) |
| Dam Length | 346 ft |
| Dam Type | Earth |
| Max Storage | 64 acre-ft |
| Normal Storage | 49 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 137 cfs |
| Year Completed | 1934 (92 years old) |
| NID ID | CO01944 |
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
TROPHY MOUNTAIN RANCH (MATHESON, MONTE)
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Three Mile?
Three Mile 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 Three Mile?
Three Mile is owned by TROPHY MOUNTAIN RANCH (MATHESON, MONTE) (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Three Mile built?
Three Mile was completed in 1934, making it 92 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 Three Mile?
Three Mile serves the following purposes: Irrigation, Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Three Mile?
Three Mile has a dam height of 16 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 Three Mile last inspected?
Three Mile was last inspected on October 26, 2016. Inspection dates indicate when a formal review occurred, not the results of that inspection.