Theodore Roosevelt

SALT RIVER· Maricopa, Arizona· Built 1911· Masonry· 357 ft tall
High Hazard Hydroelectric Irrigation Recreation Federal Government

Key Takeaway

Theodore Roosevelt is classified as high hazard in Arizona. It was completed in 1911 and is 115 years old. Its primary use is hydroelectric. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 357 ft (taller than 98.7% in AZ)
Dam Length1,208 ft
Dam TypeMasonry
Max Storage3.4M acre-ft
Normal Storage1.7M acre-ft
Surface Area31,852 acres
Drainage Area5,736 sq mi
Max Discharge150,000 cfs
Year Completed1911 (115 years old)
NID IDAZ10317

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

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

Emergency Action Plan: Yes
Last Inspection: December 10, 2020
State Regulated: No

Ownership

RECLAMATION

Federal Government

Frequently Asked Questions

What is the hazard classification of Theodore Roosevelt?

Theodore Roosevelt is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Theodore Roosevelt?

Theodore Roosevelt is owned by RECLAMATION (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Theodore Roosevelt built?

Theodore Roosevelt was completed in 1911, making it 115 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 Theodore Roosevelt?

Theodore Roosevelt serves the following purposes: Hydroelectric, Irrigation, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Theodore Roosevelt?

Theodore Roosevelt has a dam height of 357 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 Theodore Roosevelt last inspected?

Theodore Roosevelt was last inspected on December 10, 2020. 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.