Thomas No. 1

BUFFALO CREEK· Weston, Wyoming· Built 1914· Earth· 22 ft tall
Low Hazard Irrigation Private

Key Takeaway

Thomas No. 1 is classified as low hazard in Wyoming. It was completed in 1914 and is 112 years old. Its primary use is irrigation.

Physical Details

Dam Height 22 ft (taller than 28.8% in WY)
Dam Length272 ft
Dam TypeEarth
Max Storage168 acre-ft
Normal Storage125 acre-ft
Surface Area18 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1914 (112 years old)
NID IDWY00975

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: September 19, 2022
State Regulated: Yes
Regulatory Agency: SEO

Ownership

KENNEDY O. & BETH KIMSEY

Private

Nearby Dams

Thomas No. 2

Weston, WY

Low Hazard 23 ft

Watt Brothers No. 1

Weston, WY

Low Hazard 28 ft

Watt Brothers No. 2

Weston, WY

Low Hazard 20 ft

Kossert 9-303-1

Weston, WY

Low Hazard 11 ft

Benne

Weston, WY

Low Hazard 33 ft

Betty

Crook, WY

Low Hazard 31 ft

E. E. Wakeman

Crook, WY

Low Hazard 17 ft

Baker No. 2

Weston, WY

Low Hazard 26 ft

Frequently Asked Questions

What is the hazard classification of Thomas No. 1?

Thomas 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 Thomas No. 1?

Thomas No. 1 is owned by KENNEDY O. & BETH KIMSEY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Thomas No. 1 built?

Thomas No. 1 was completed in 1914, making it 112 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 No. 1?

Thomas No. 1 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 No. 1?

Thomas No. 1 has a dam height of 22 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 No. 1 last inspected?

Thomas No. 1 was last inspected on September 19, 2022. 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.