Mountain Home

RATTLESNAKE CREEK CANYON CREEK· Elmore, Idaho· Built 1884· 48 ft tall
High Hazard Other Private

Key Takeaway

Mountain Home is classified as high hazard in Idaho. It was completed in 1884 and is 142 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 48 ft (taller than 77.9% in ID)
Dam Length3,700 ft
Normal Storage5.5K acre-ft
Surface Area406 acres
Drainage Area37 sq mi
Max Discharge0 cfs
Year Completed1884 (142 years old)
Year Modified1970
NID IDID00238

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: June 4, 2019
State Regulated: Yes
Regulatory Agency: IDWR

Ownership

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Mountain Home?

Mountain Home 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 Mountain Home?

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

When was Mountain Home built?

Mountain Home was completed in 1884, making it 142 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 Mountain Home?

Mountain Home 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 Mountain Home?

Mountain Home has a dam height of 48 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 Mountain Home last inspected?

Mountain Home was last inspected on June 4, 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.