Deyo
Key Takeaway
Deyo is classified as significant hazard in Idaho. It was completed in 2011 and is 15 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 35 ft (taller than 64.3% in ID) |
| Dam Length | 345 ft |
| Normal Storage | 550 acre-ft |
| Surface Area | 55 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 267 cfs |
| Year Completed | 2011 (15 years old) |
| Year Modified | 2012 |
| NID ID | ID00725 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
State Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Deyo?
Deyo is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Deyo?
Deyo is owned by information not available (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Deyo built?
Deyo was completed in 2011, making it 15 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 Deyo?
Deyo 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 Deyo?
Deyo has a dam height of 35 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 Deyo last inspected?
Deyo was last inspected on July 18, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.