Salmon Falls

SALMON FALLS CREEK SNAKE RIVER· Twin Falls, Idaho· Built 1911· 224 ft tall
High Hazard Other Private

Key Takeaway

Salmon Falls is classified as high hazard in Idaho. It was completed in 1911 and is 115 years old. Its primary use is other. 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 224 ft (taller than 97.7% in ID)
Dam Length450 ft
Normal Storage230.7K acre-ft
Surface Area3,400 acres
Drainage Area1,610 sq mi
Max Discharge0 cfs
Year Completed1911 (115 years old)
NID IDID00044

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: May 15, 2020
State Regulated: Yes
Regulatory Agency: IDWR

Ownership

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Salmon Falls?

Salmon Falls 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 Salmon Falls?

Salmon Falls is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Salmon Falls built?

Salmon Falls 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 Salmon Falls?

Salmon Falls 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 Salmon Falls?

Salmon Falls has a dam height of 224 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 Salmon Falls last inspected?

Salmon Falls was last inspected on May 15, 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.