Cadet Mine Tailings Dam

TR-MILL CREEK· Washington, Missouri· Built 1978· Earth· 97 ft tall
High Hazard Tailings Private

Key Takeaway

Cadet Mine Tailings Dam is classified as high hazard in Missouri. It was completed in 1978 and is 48 years old. Its primary use is tailings. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 97 ft (taller than 99.5% in MO)
Dam Length3,800 ft
Dam TypeEarth
Max Storage103 acre-ft
Normal Storage103 acre-ft
Surface Area2 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1978 (48 years old)
NID IDMO30715

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

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

Emergency Action Plan: Yes
Last Inspection: September 2, 2021
State Regulated: Yes
Regulatory Agency: Dam and Reservoir Safety Program

Ownership

Private

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Frequently Asked Questions

What is the hazard classification of Cadet Mine Tailings Dam?

Cadet Mine Tailings Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Cadet Mine Tailings Dam?

Cadet Mine Tailings Dam is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Cadet Mine Tailings Dam built?

Cadet Mine Tailings Dam was completed in 1978, making it 48 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 Cadet Mine Tailings Dam?

Cadet Mine Tailings Dam serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Cadet Mine Tailings Dam?

Cadet Mine Tailings Dam has a dam height of 97 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 Cadet Mine Tailings Dam last inspected?

Cadet Mine Tailings Dam was last inspected on September 2, 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.