Parkman Disposal

PARKMAN DRAW· Johnson, Wyoming· Built 1985· Earth· 60 ft tall
Low Hazard Debris Control Other Private

Key Takeaway

Parkman Disposal is classified as low hazard in Wyoming. It was completed in 1985 and is 41 years old. Its primary use is debris control.

Physical Details

Dam Height 60 ft (taller than 96.1% in WY)
Dam Length940 ft
Dam TypeEarth
Normal Storage203 acre-ft
Surface Area10 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1985 (41 years old)
NID IDWY01796

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: May 18, 2021
State Regulated: Yes
Regulatory Agency: SEO

Ownership

LLB RANCH, LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Parkman Disposal?

Parkman Disposal 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 Parkman Disposal?

Parkman Disposal is owned by LLB RANCH, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Parkman Disposal built?

Parkman Disposal was completed in 1985, making it 41 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 Parkman Disposal?

Parkman Disposal serves the following purposes: Debris Control, Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Parkman Disposal?

Parkman Disposal has a dam height of 60 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 Parkman Disposal last inspected?

Parkman Disposal was last inspected on May 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.