Garnett

SHELL CREEK TRIB BIGHORN RIVER· Big Horn, Wyoming· Built 1944· Earth· 30 ft tall

Key Takeaway

Garnett is classified as significant hazard in Wyoming. It was completed in 1944 and is 82 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 30 ft (taller than 63.1% in WY)
Dam Length430 ft
Dam TypeEarth
Max Storage185 acre-ft
Normal Storage133 acre-ft
Surface Area16 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1944 (82 years old)
NID IDWY01103

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
Last Inspection: May 11, 2021
State Regulated: Yes
Regulatory Agency: SEO

Ownership

POWERS FAMILY TRUST, GENE A. AND LOUISE S. POWERS TRUSTEES

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Garnett?

Garnett is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Garnett?

Garnett is owned by POWERS FAMILY TRUST, GENE A. AND LOUISE S. POWERS TRUSTEES (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Garnett built?

Garnett was completed in 1944, making it 82 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 Garnett?

Garnett serves the following purposes: Irrigation, Fire Protection, Stock, Or Small Fish Pond, Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Garnett?

Garnett 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 Garnett last inspected?

Garnett was last inspected on May 11, 2021. 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.