Twin Tanks

UNNAMED TO DAVIDSON CANYON - TR· Pima, Arizona· Earth· 24 ft tall

Key Takeaway

Twin Tanks is classified as low hazard in Arizona. Its primary use is other.

Physical Details

Dam Height 24 ft (taller than 42.3% in AZ)
Dam Length792 ft
Dam TypeEarth
Normal Storage69 acre-ft
Surface Area9 acres
NID IDAZ00264

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

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

Emergency Action Plan: No
Last Inspection: April 11, 2006
State Regulated: Yes
Regulatory Agency: ARIZONA DEPARTMENT OF WATER RESOURCES

Ownership

ANDRADA RANCH;ARIZONA STATE LAND DEPARTMENT

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Twin Tanks?

Twin Tanks is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Twin Tanks?

Twin Tanks is owned by ANDRADA RANCH;ARIZONA STATE LAND DEPARTMENT (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Twin Tanks?

Twin Tanks serves the following purposes: Other, Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Twin Tanks?

Twin Tanks has a dam height of 24 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 Twin Tanks last inspected?

Twin Tanks was last inspected on April 11, 2006. 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.