D Tailings

Pinal, Arizona· Earth· 150 ft tall
Significant Hazard Tailings Private

Key Takeaway

D Tailings is classified as significant hazard in Arizona. Its primary use is tailings. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 150 ft (taller than 92.8% in AZ)
Dam Length1 ft
Dam TypeEarth
Max Storage63.0K acre-ft
NID IDAZ83462

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

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

Emergency Action Plan: Yes
State Regulated: No

Ownership

Asarco

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of D Tailings?

D Tailings is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates D Tailings?

D Tailings is owned by Asarco (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of D Tailings?

D 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 D Tailings?

D Tailings has a dam height of 150 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.

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.