Nash

FIVEMILE CREEK BEAR RIVER· Franklin, Idaho· Built 1952· 21 ft tall
Low Hazard Irrigation Private

Key Takeaway

Nash is classified as low hazard in Idaho. It was completed in 1952 and is 74 years old. Its primary use is irrigation.

Physical Details

Dam Height 21 ft (taller than 30.8% in ID)
Dam Length500 ft
Normal Storage94 acre-ft
Surface Area14 acres
Drainage Area4 sq mi
Max Discharge164 cfs
Year Completed1952 (74 years old)
Year Modified2005
NID IDID00072

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

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

Emergency Action Plan: No
Last Inspection: July 19, 2017
State Regulated: Yes
Regulatory Agency: IDWR

Ownership

Private

Nearby Dams

Five Mile Erosion Contr

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Tingey

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Twin Lakes South

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Twin Lakes North

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Weston

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Winder

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Foster

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Strong Arm No 2 (Lower)

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Frequently Asked Questions

What is the hazard classification of Nash?

Nash is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Nash?

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

When was Nash built?

Nash was completed in 1952, making it 74 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 Nash?

Nash 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 Nash?

Nash has a dam height of 21 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 Nash last inspected?

Nash was last inspected on July 19, 2017. 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.