North Antelope Shop

PORCUPINE CREEK· Campbell, Wyoming· Built 1983· Earth· 29 ft tall
Low Hazard Other Private

Key Takeaway

North Antelope Shop is classified as low hazard in Wyoming. It was completed in 1983 and is 43 years old. Its primary use is other.

Physical Details

Dam Height 29 ft (taller than 59.6% in WY)
Dam Length200 ft
Dam TypeEarth
Normal Storage18 acre-ft
Surface Area2 acres
Drainage Area0 sq mi
Max Discharge64 cfs
Year Completed1983 (43 years old)
NID IDWY01782

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: July 8, 2021
State Regulated: Yes
Regulatory Agency: SEO

Ownership

PEABODY POWDER RIVER MINING, LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of North Antelope Shop?

North Antelope Shop 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 North Antelope Shop?

North Antelope Shop is owned by PEABODY POWDER RIVER MINING, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was North Antelope Shop built?

North Antelope Shop was completed in 1983, making it 43 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 North Antelope Shop?

North Antelope Shop serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is North Antelope Shop?

North Antelope Shop has a dam height of 29 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 North Antelope Shop last inspected?

North Antelope Shop was last inspected on July 8, 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.