Washakie Dike No. 1
Key Takeaway
Washakie Dike No. 1 is classified as high hazard in Wyoming. It was completed in 1935 and is 91 years old. Its primary use is irrigation. 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 | 26 ft (taller than 46.3% in WY) |
| Dam Length | 593 ft |
| Dam Type | Earth |
| Max Storage | 10.3K acre-ft |
| Normal Storage | 7.9K acre-ft |
| Surface Area | 368 acres |
| Drainage Area | 92 sq mi |
| Max Discharge | 43,000 cfs |
| Year Completed | 1935 (91 years old) |
| NID ID | WY02902 |
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
USDI BIA
Federal Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Washakie Dike No. 1?
Washakie Dike No. 1 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 Washakie Dike No. 1?
Washakie Dike No. 1 is owned by USDI BIA (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Washakie Dike No. 1 built?
Washakie Dike No. 1 was completed in 1935, making it 91 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 Washakie Dike No. 1?
Washakie Dike No. 1 serves the following purposes: Irrigation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Washakie Dike No. 1?
Washakie Dike No. 1 has a dam height of 26 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 Washakie Dike No. 1 last inspected?
Washakie Dike No. 1 was last inspected on August 16, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.