Horn Creek

HORN CREEK· Johnson, Wyoming· Built 1956· Earth· 35 ft tall
Low Hazard Irrigation Private

Key Takeaway

Horn Creek is classified as low hazard in Wyoming. It was completed in 1956 and is 70 years old. Its primary use is irrigation.

Physical Details

Dam Height 35 ft (taller than 78.8% in WY)
Dam Length463 ft
Dam TypeEarth
Max Storage425 acre-ft
Normal Storage297 acre-ft
Surface Area23 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1956 (70 years old)
NID IDWY00774

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: June 7, 2023
State Regulated: Yes
Regulatory Agency: SEO

Ownership

RODUNER CATTLE, INC.

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Horn Creek?

Horn Creek 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 Horn Creek?

Horn Creek is owned by RODUNER CATTLE, INC. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Horn Creek built?

Horn Creek was completed in 1956, making it 70 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 Horn Creek?

Horn Creek 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 Horn Creek?

Horn Creek has a dam height of 35 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 Horn Creek last inspected?

Horn Creek was last inspected on June 7, 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.