Butler Taconite Initial Tailings

O'BRIEN CREEK - OS· Itasca, Minnesota· Built 1969· Earth· 18 ft tall
Unknown Tailings Private

Key Takeaway

Butler Taconite Initial Tailings is classified as unknown in Minnesota. It was completed in 1969 and is 57 years old. Its primary use is tailings.

Physical Details

Dam Height 18 ft (taller than 57.4% in MN)
Dam Length24,400 ft
Dam TypeEarth
Max Storage5.0K acre-ft
Normal Storage2.3K acre-ft
Year Completed1969 (57 years old)
NID IDMN00802

Safety Information

Unknown

Hazard potential has not been determined.

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

Emergency Action Plan: No
Last Inspection: June 12, 2014
State Regulated: No

Ownership

Hanna Mining Company Age

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Butler Taconite Initial Tailings?

Butler Taconite Initial Tailings is classified as Unknown. Hazard potential has not been determined. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Butler Taconite Initial Tailings?

Butler Taconite Initial Tailings is owned by Hanna Mining Company Age (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Butler Taconite Initial Tailings built?

Butler Taconite Initial Tailings was completed in 1969, making it 57 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 Butler Taconite Initial Tailings?

Butler Taconite Initial Tailings 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 Butler Taconite Initial Tailings?

Butler Taconite Initial Tailings has a dam height of 18 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 Butler Taconite Initial Tailings last inspected?

Butler Taconite Initial Tailings was last inspected on June 12, 2014. 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.