Thomas

N RAWHIDE CREEK· Park, Wyoming· Built 1949· Earth· 56 ft tall
Low Hazard Irrigation Private

Key Takeaway

Thomas is classified as low hazard in Wyoming. It was completed in 1949 and is 77 years old. Its primary use is irrigation.

Physical Details

Dam Height 56 ft (taller than 95.3% in WY)
Dam Length900 ft
Dam TypeEarth
Max Storage1.1K acre-ft
Normal Storage864 acre-ft
Surface Area45 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1949 (77 years old)
NID IDWY01159

Safety Information

Low Hazard

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?

Emergency Action Plan: No
Last Inspection: July 13, 2023
State Regulated: Yes
Regulatory Agency: SEO

Ownership

91 RANCH

Private

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Frequently Asked Questions

What is the hazard classification of Thomas?

Thomas 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 Thomas?

Thomas is owned by 91 RANCH (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Thomas built?

Thomas was completed in 1949, making it 77 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 Thomas?

Thomas serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Thomas?

Thomas has a dam height of 56 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 Thomas last inspected?

Thomas was last inspected on July 13, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.