Poison Creek No. 1
Key Takeaway
Poison Creek No. 1 is classified as low hazard in Wyoming. It was completed in 1999 and is 27 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 30 ft (taller than 63.1% in WY) |
| Dam Length | 340 ft |
| Dam Type | Earth |
| Max Storage | 33 acre-ft |
| Normal Storage | 21 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 1,195 cfs |
| Year Completed | 1999 (27 years old) |
| NID ID | WY02385 |
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
SPRINGS RANCH, LLC
Private
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Low Hazard 44 ftFrequently Asked Questions
What is the hazard classification of Poison Creek No. 1?
Poison Creek No. 1 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 Poison Creek No. 1?
Poison Creek No. 1 is owned by SPRINGS RANCH, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Poison Creek No. 1 built?
Poison Creek No. 1 was completed in 1999, making it 27 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 Poison Creek No. 1?
Poison Creek No. 1 serves the following purposes: Irrigation, Fire Protection, Stock, Or Small Fish Pond, Fish And Wildlife Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Poison Creek No. 1?
Poison Creek No. 1 has a dam height of 30 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 Poison Creek No. 1 last inspected?
Poison Creek No. 1 was last inspected on August 18, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.