Falxa No. 1

PHILLIPS DRAW· Johnson, Wyoming· Built 1958· Earth· 25 ft tall
Low Hazard Fire Protection Stock Or Small Fish Pond Private

Key Takeaway

Falxa No. 1 is classified as low hazard in Wyoming. It was completed in 1958 and is 68 years old. Its primary use is fire protection.

Physical Details

Dam Height 25 ft (taller than 39.5% in WY)
Dam Length255 ft
Dam TypeEarth
Max Storage73 acre-ft
Normal Storage38 acre-ft
Surface Area6 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1958 (68 years old)
NID IDWY00536

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 18, 2021
State Regulated: Yes
Regulatory Agency: SEO

Ownership

FALXA LAND COMPANY, INC

Private

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Frequently Asked Questions

What is the hazard classification of Falxa No. 1?

Falxa 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 Falxa No. 1?

Falxa No. 1 is owned by FALXA LAND COMPANY, INC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Falxa No. 1 built?

Falxa No. 1 was completed in 1958, making it 68 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 Falxa No. 1?

Falxa No. 1 serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Falxa No. 1?

Falxa No. 1 has a dam height of 25 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 Falxa No. 1 last inspected?

Falxa No. 1 was last inspected on August 18, 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.