Glendo Dike No. 1
Key Takeaway
Glendo Dike No. 1 is classified as high hazard in Wyoming. It was completed in 1957 and is 69 years old. Its primary use is flood risk reduction. 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 | 20 ft (taller than 21.5% in WY) |
| Dam Length | 1,000 ft |
| Dam Type | Earth |
| Max Storage | 23.3K acre-ft |
| Normal Storage | 12.4K acre-ft |
| Surface Area | 23,320 acres |
| Max Discharge | 21,535 cfs |
| Year Completed | 1957 (69 years old) |
| NID ID | WY01485 |
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
RECLAMATION
Federal Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Glendo Dike No. 1?
Glendo 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 Glendo Dike No. 1?
Glendo Dike No. 1 is owned by RECLAMATION (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Glendo Dike No. 1 built?
Glendo Dike No. 1 was completed in 1957, making it 69 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 Glendo Dike No. 1?
Glendo Dike No. 1 serves the following purposes: Flood Risk Reduction, Irrigation, Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Glendo Dike No. 1?
Glendo Dike No. 1 has a dam height of 20 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 Glendo Dike No. 1 last inspected?
Glendo Dike No. 1 was last inspected on July 1, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.