Glendo
Key Takeaway
Glendo is classified as high hazard in Wyoming. It was completed in 1958 and is 68 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 Length | 2,096 ft |
| Dam Type | Earth |
| Max Storage | 1.1M acre-ft |
| Normal Storage | 454.3K acre-ft |
| Surface Area | 23,320 acres |
| Drainage Area | 19,504 sq mi |
| Year Completed | 1958 (68 years old) |
| NID ID | WY01291 |
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?
Glendo 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?
Glendo is owned by RECLAMATION (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Glendo built?
Glendo was completed in 1958, making it 68 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?
Glendo serves the following purposes: Flood Risk Reduction, Irrigation, Fish And Wildlife Pond, Recreation, Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Glendo last inspected?
Glendo was last inspected on July 1, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.