Red Dog Tailings Main Dam

About Red Dog Tailings Main Dam

The primary purpose of Red Dog Tailings Main Dam is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by Teck Alaska Inc. (private). It impounds the S.f. Red Dog Cr near Kivalina.

The dam stands 208 feet tall and stretches 5,700 feet across, creates a reservoir covering 629 acres, has a maximum storage capacity of 40,030 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1993, the structure is 33 years old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 08/03/2020.

At 208 feet, this dam is taller than 99% of all dams in the United States.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Alaska dam safety program can provide more specific information about emergency planning for this structure.

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