Mesquite Generating Station Evaporation Ponds

CENTENNIAL WASH - OS· Maricopa, Arizona· Built 2003· Earth· 16 ft tall
Low Hazard Other Public Utility

Key Takeaway

Mesquite Generating Station Evaporation Ponds is classified as low hazard in Arizona. It was completed in 2003 and is 23 years old. Its primary use is other.

Physical Details

Dam Height 16 ft (taller than 20.5% in AZ)
Dam Length10,530 ft
Dam TypeEarth
Max Storage1.4K acre-ft
Normal Storage0 acre-ft
Surface Area120 acres
Year Completed2003 (23 years old)
NID IDAZ00299

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: March 22, 2019
State Regulated: Yes
Regulatory Agency: ARIZONA DEPARTMENT OF WATER RESOURCES

Ownership

MESQUITE POWER (A SEMPRA ENERGY DEVELOPMENT);SRP

Public Utility

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Mesquite Generating Station Evaporation Ponds?

Mesquite Generating Station Evaporation Ponds 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 Mesquite Generating Station Evaporation Ponds?

Mesquite Generating Station Evaporation Ponds is owned by MESQUITE POWER (A SEMPRA ENERGY DEVELOPMENT);SRP (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Mesquite Generating Station Evaporation Ponds built?

Mesquite Generating Station Evaporation Ponds was completed in 2003, making it 23 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 Mesquite Generating Station Evaporation Ponds?

Mesquite Generating Station Evaporation Ponds serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Mesquite Generating Station Evaporation Ponds?

Mesquite Generating Station Evaporation Ponds has a dam height of 16 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 Mesquite Generating Station Evaporation Ponds last inspected?

Mesquite Generating Station Evaporation Ponds was last inspected on March 22, 2019. 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.