Shoshone Diversion Dam
Key Takeaway
Shoshone Diversion Dam is classified as high hazard in Colorado. It was completed in 1909 and is 117 years old. Its primary use is hydroelectric. 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 | 21 ft (taller than 40.7% in CO) |
| Dam Length | 250 ft |
| Dam Type | Concrete |
| Max Storage | 516 acre-ft |
| Normal Storage | 420 acre-ft |
| Surface Area | 48 acres |
| Drainage Area | 4,470 sq mi |
| Max Discharge | 1,782 cfs |
| Year Completed | 1909 (117 years old) |
| NID ID | CO02955 |
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
XCEL ENERGY (MARTINEZ, PATRICK)
Public Utility
Nearby Dams
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Significant Hazard 18 ftFlannery
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Significant Hazard 15 ftFrequently Asked Questions
What is the hazard classification of Shoshone Diversion Dam?
Shoshone Diversion Dam 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 Shoshone Diversion Dam?
Shoshone Diversion Dam is owned by XCEL ENERGY (MARTINEZ, PATRICK) (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Shoshone Diversion Dam built?
Shoshone Diversion Dam was completed in 1909, making it 117 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 Shoshone Diversion Dam?
Shoshone Diversion Dam 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 Shoshone Diversion Dam?
Shoshone Diversion Dam has a dam height of 21 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 Shoshone Diversion Dam last inspected?
Shoshone Diversion Dam was last inspected on April 15, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.