Keystone Diversion
Key Takeaway
Keystone Diversion is classified as low hazard in Nebraska. It was completed in 1935 and is 91 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 20 ft (taller than 28.5% in NE) |
| Dam Length | 460 ft |
| Dam Type | Earth |
| Max Storage | 4.2K acre-ft |
| Surface Area | 640 acres |
| Drainage Area | 29,400 sq mi |
| Year Completed | 1935 (91 years old) |
| NID ID | NE01050 |
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
Nebraska Public Power District
Public Utility
Nearby Dams
Kingsley
Keith, NE
High Hazard 162 ftCure Creek 1-A
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High Hazard 32 ftRay Nelson Erosion Control Dam
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Low Hazard 16 ftKorty Diversion
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Low Hazard 15 ftWestern Irrigation District Dam 1
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Low Hazard 23 ftFrequently Asked Questions
What is the hazard classification of Keystone Diversion?
Keystone Diversion 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 Keystone Diversion?
Keystone Diversion is owned by Nebraska Public Power District (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Keystone Diversion built?
Keystone Diversion 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 Keystone Diversion?
Keystone Diversion serves the following purposes: Hydroelectric, Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Keystone Diversion?
Keystone Diversion 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 Keystone Diversion last inspected?
Keystone Diversion was last inspected on June 21, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.