Easy Retention Dam

WILLOW CK./MUSSELSHELL RIVER· Musselshell, Montana· Built 1972· Gravity·
Low Hazard Fire Protection Stock Or Small Fish Pond Federal Government

Key Takeaway

Easy Retention Dam is classified as low hazard in Montana. It was completed in 1972 and is 54 years old. Its primary use is fire protection.

Physical Details

Dam Length281 ft
Dam TypeGravity
Max Storage212 acre-ft
Surface Area13 acres
Drainage Area3 sq mi
Year Completed1972 (54 years old)
NID IDMT03922

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 20, 2020
State Regulated: No

Ownership

DOI BLM

Federal Government

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Rp Griffith #1

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Gofara #3

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Willow (Musselshell)

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Sheepland

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Gofara #7

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Frequently Asked Questions

What is the hazard classification of Easy Retention Dam?

Easy Retention Dam 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 Easy Retention Dam?

Easy Retention Dam is owned by DOI BLM (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Easy Retention Dam built?

Easy Retention Dam was completed in 1972, making it 54 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 Easy Retention Dam?

Easy Retention Dam serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Easy Retention Dam last inspected?

Easy Retention Dam was last inspected on July 20, 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.