Oro Blanco

ORO BLANCO WASH· Santa Cruz, Arizona· Built 1950· Earth· 18 ft tall

Key Takeaway

Oro Blanco is classified as low hazard in Arizona. It was completed in 1950 and is 76 years old. Its primary use is fish and wildlife pond.

Physical Details

Dam Height 18 ft (taller than 25.1% in AZ)
Dam Length762 ft
Dam TypeEarth
Normal Storage67 acre-ft
Surface Area12 acres
Drainage Area4 sq mi
Year Completed1950 (76 years old)
NID IDAZ00116

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 4, 2012
State Regulated: Yes
Regulatory Agency: ARIZONA DEPARTMENT OF WATER RESOURCES

Ownership

ORO BLANCO RANCH

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Oro Blanco?

Oro Blanco 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 Oro Blanco?

Oro Blanco is owned by ORO BLANCO RANCH (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Oro Blanco built?

Oro Blanco was completed in 1950, making it 76 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Oro Blanco?

Oro Blanco serves the following purposes: Fish And Wildlife Pond, 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 Oro Blanco?

Oro Blanco has a dam height of 18 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 Oro Blanco last inspected?

Oro Blanco was last inspected on April 4, 2012. 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.