Flat Rock Reservoir

Apache, Arizona· 25 ft tall

Unknown Not Listed

Key Takeaway

Flat Rock Reservoir is classified as unknown in Arizona.

Physical Details

Dam Height	25 ft (taller than 44.6% in AZ)
Normal Storage	174 acre-ft

NID ID	AZ10454

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

State Regulated: No

Ownership

Not Listed

Nearby Dams

Nazlini

Apache, AZ

Unknown 21 ft

Frequently Asked Questions

What is the hazard classification of Flat Rock Reservoir?

Flat Rock Reservoir 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 Flat Rock Reservoir?

Flat Rock Reservoir is owned by information not available (Not Listed). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

How tall is Flat Rock Reservoir?

Flat Rock Reservoir has a dam height of 25 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.