Murtaugh Lake

DRY CREEK SNAKE RIVER· Twin Falls, Idaho· Built 1905· 42 ft tall
High Hazard Irrigation Private

Key Takeaway

Murtaugh Lake is classified as high hazard in Idaho. It was completed in 1905 and is 121 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 42 ft (taller than 72.8% in ID)
Dam Length8,000 ft
Normal Storage7.7K acre-ft
Surface Area827 acres
Drainage Area238 sq mi
Max Discharge0 cfs
Year Completed1905 (121 years old)
Year Modified1984
NID IDID00165

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 22, 2019
State Regulated: Yes
Regulatory Agency: IDWR

Ownership

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Murtaugh Lake?

Murtaugh Lake 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 Murtaugh Lake?

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

When was Murtaugh Lake built?

Murtaugh Lake was completed in 1905, making it 121 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 Murtaugh Lake?

Murtaugh Lake 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 Murtaugh Lake?

Murtaugh Lake has a dam height of 42 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 Murtaugh Lake last inspected?

Murtaugh Lake was last inspected on October 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.