Anderson

OTTO CREEK, TRIB COW CREEK· Carbon, Wyoming· Built 1931· Earth· 28 ft tall
Low Hazard Irrigation Private

Key Takeaway

Anderson is classified as low hazard in Wyoming. It was completed in 1931 and is 95 years old. Its primary use is irrigation.

Physical Details

Dam Height 28 ft (taller than 55% in WY)
Dam Length1,600 ft
Dam TypeEarth
Max Storage346 acre-ft
Normal Storage361 acre-ft
Surface Area4 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1931 (95 years old)
NID IDWY00008

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: August 29, 2022
State Regulated: Yes
Regulatory Agency: SEO

Ownership

SILVER SPUR LAND & CATTLE LLC

Private

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Water Valley Fish & Recreation

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Cow Creek Lake

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Thompson

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Cherokee Trail

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Silver Lake

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Antelope

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South Spring Creek Lake

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High Hazard 33 ft

Frequently Asked Questions

What is the hazard classification of Anderson?

Anderson 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 Anderson?

Anderson is owned by SILVER SPUR LAND & CATTLE LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Anderson built?

Anderson was completed in 1931, making it 95 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 Anderson?

Anderson 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 Anderson?

Anderson has a dam height of 28 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 Anderson last inspected?

Anderson was last inspected on August 29, 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.