Idaho Falls Upper Powerhouse Dam No 2
Key Takeaway
Idaho Falls Upper Powerhouse Dam No 2 is classified as low hazard in Idaho. It was completed in 1982 and is 44 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 37 ft (taller than 68.4% in ID) |
| Dam Length | 460 ft |
| Normal Storage | 424 acre-ft |
| Surface Area | 59 acres |
| Drainage Area | 9,050 sq mi |
| Max Discharge | 13,500 cfs |
| Year Completed | 1982 (44 years old) |
| NID ID | ID00640 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Public Utility
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High Hazard 40 ftFrequently Asked Questions
What is the hazard classification of Idaho Falls Upper Powerhouse Dam No 2?
Idaho Falls Upper Powerhouse Dam No 2 is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Idaho Falls Upper Powerhouse Dam No 2?
Idaho Falls Upper Powerhouse Dam No 2 is owned by information not available (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Idaho Falls Upper Powerhouse Dam No 2 built?
Idaho Falls Upper Powerhouse Dam No 2 was completed in 1982, making it 44 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 Idaho Falls Upper Powerhouse Dam No 2?
Idaho Falls Upper Powerhouse Dam No 2 serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Idaho Falls Upper Powerhouse Dam No 2?
Idaho Falls Upper Powerhouse Dam No 2 has a dam height of 37 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 Idaho Falls Upper Powerhouse Dam No 2 last inspected?
Idaho Falls Upper Powerhouse Dam No 2 was last inspected on October 31, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.