Crystal Lake
Key Takeaway
Crystal Lake is classified as high hazard in Wyoming. It was completed in 1922 and is 104 years old. Its primary use is water supply. 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 | 106 ft (taller than 98.6% in WY) |
| Dam Length | 170 ft |
| Dam Type | Concrete |
| Max Storage | 4.5K acre-ft |
| Normal Storage | 4.1K acre-ft |
| Surface Area | 136 acres |
| Drainage Area | 40 sq mi |
| Max Discharge | 36,812 cfs |
| Year Completed | 1922 (104 years old) |
| Year Modified | 1987 |
| NID ID | WY00002 |
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
CITY OF CHEYENNE-BOPU
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Crystal Lake?
Crystal Lake 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 Crystal Lake?
Crystal Lake is owned by CITY OF CHEYENNE-BOPU (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Crystal Lake built?
Crystal 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 Crystal Lake?
Crystal Lake serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Crystal Lake?
Crystal Lake has a dam height of 106 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 Crystal Lake last inspected?
Crystal Lake was last inspected on April 26, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.