Western Hillside Reservoir
Key Takeaway
Western Hillside Reservoir is classified as high hazard in Colorado. It was completed in 1997 and is 29 years old. Its primary use is other. 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 | 46 ft (taller than 86.3% in CO) |
| Dam Length | 1,300 ft |
| Dam Type | Earth |
| Max Storage | 154 acre-ft |
| Normal Storage | 124 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 224 cfs |
| Year Completed | 1997 (29 years old) |
| NID ID | CO02804 |
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
VAIL RESORTS
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Western Hillside Reservoir?
Western Hillside Reservoir 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 Western Hillside Reservoir?
Western Hillside Reservoir is owned by VAIL RESORTS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Western Hillside Reservoir built?
Western Hillside Reservoir was completed in 1997, making it 29 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 Western Hillside Reservoir?
Western Hillside Reservoir serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Western Hillside Reservoir?
Western Hillside Reservoir has a dam height of 46 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 Western Hillside Reservoir last inspected?
Western Hillside Reservoir was last inspected on August 9, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.