Warm Springs

MIDDLE FORK MALHEUR RIVER· Malheur, Oregon· Built 1918· Concrete· 100 ft tall
High Hazard Irrigation Federal Government

Key Takeaway

Warm Springs is classified as high hazard in Oregon. It was completed in 1918 and is 108 years old. Its primary use is irrigation. 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 100 ft (taller than 93.9% in OR)
Dam Length469 ft
Dam TypeConcrete
Max Storage192.4K acre-ft
Normal Storage192.4K acre-ft
Surface Area4,600 acres
Drainage Area1,100 sq mi
Max Discharge9,800 cfs
Year Completed1918 (108 years old)
NID IDOR00082

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: October 16, 2019
State Regulated: No

Ownership

RECLAMATION;WARM SPRINGS ID

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Warm Springs?

Warm Springs 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 Warm Springs?

Warm Springs is owned by RECLAMATION;WARM SPRINGS ID (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Warm Springs built?

Warm Springs was completed in 1918, making it 108 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 Warm Springs?

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

How tall is Warm Springs?

Warm Springs has a dam height of 100 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 Warm Springs last inspected?

Warm Springs was last inspected on October 16, 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.