Sulphur Creek
Key Takeaway
Sulphur Creek is classified as high hazard in Wyoming. It was completed in 1964 and is 62 years old. Its primary use is irrigation. 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 | 85 ft (taller than 97.7% in WY) |
| Dam Length | 4,725 ft |
| Dam Type | Earth |
| Max Storage | 19.8K acre-ft |
| Normal Storage | 19.8K acre-ft |
| Surface Area | 632 acres |
| Drainage Area | 63 sq mi |
| Max Discharge | 200 cfs |
| Year Completed | 1964 (62 years old) |
| Year Modified | 1988 |
| NID ID | WY01196 |
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
CITY OF EVANSTON
Local Government
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Low Hazard 26 ftFrequently Asked Questions
What is the hazard classification of Sulphur Creek?
Sulphur Creek 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 Sulphur Creek?
Sulphur Creek is owned by CITY OF EVANSTON (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Sulphur Creek built?
Sulphur Creek was completed in 1964, making it 62 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 Sulphur Creek?
Sulphur Creek serves the following purposes: Irrigation, Other, Fish And Wildlife Pond, Water Supply, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Sulphur Creek?
Sulphur Creek has a dam height of 85 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 Sulphur Creek last inspected?
Sulphur Creek was last inspected on July 24, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.