Apache Station Ash/scrubber Wdf

About Apache Station Ash/scrubber Wdf

The primary purpose of Apache Station Ash/scrubber Wdf is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by Arizona Electric Power Cooperative, Inc. (public utility). It impounds the Offstream near N/a.

The dam stands 33 feet tall and stretches 14,500 feet across, creates a reservoir covering 229 acres, has a maximum storage capacity of 3,700 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1995, the structure is 31 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 11/04/2024.

At 33 feet, this dam is taller than 78% of dams nationwide.

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 Arizona dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.