Mccloy, R.

DRY CREEK· McCone, Montana· Built 1943· Earth· 20 ft tall
Low Hazard Irrigation Private

Key Takeaway

Mccloy, R. is classified as low hazard in Montana. It was completed in 1943 and is 83 years old. Its primary use is irrigation.

Physical Details

Dam Height 20 ft (taller than 44.5% in MT)
Dam Length300 ft
Dam TypeEarth
Max Storage176 acre-ft
Normal Storage74 acre-ft
Max Discharge1,000 cfs
Year Completed1943 (83 years old)
NID IDMT00917

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
State Regulated: Yes
Regulatory Agency: DNRC

Ownership

ROBERT E MCCLOY

Private

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Mothershead, R.

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Hilstad

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Quick, Floyd #2

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Harvard

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Voss #1

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Mathilda #1

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Frequently Asked Questions

What is the hazard classification of Mccloy, R.?

Mccloy, R. 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 Mccloy, R.?

Mccloy, R. is owned by ROBERT E MCCLOY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Mccloy, R. built?

Mccloy, R. was completed in 1943, making it 83 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 Mccloy, R.?

Mccloy, R. 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 Mccloy, R.?

Mccloy, R. has a dam height of 20 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.

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.