Hagan Lake Dam

HOMINY BRANCH· Boone, Missouri· Built 1960· Earth· 19 ft tall

High Hazard Recreation Private

Key Takeaway

Hagan Lake Dam is classified as high hazard in Missouri. It was completed in 1960 and is 66 years old. Its primary use is recreation. 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	19 ft (taller than 6.3% in MO)
Dam Type	Earth
Max Storage	71 acre-ft
Normal Storage	66 acre-ft

Surface Area	7 acres
Drainage Area	160 sq mi
Year Completed	1960 (66 years old)
NID ID	MO11057

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: No

Last Inspection: June 3, 1980

State Regulated: No

Ownership

DAN HAGAN

Private

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Frequently Asked Questions

What is the hazard classification of Hagan Lake Dam?

Hagan Lake Dam 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 Hagan Lake Dam?

Hagan Lake Dam is owned by DAN HAGAN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Hagan Lake Dam built?

Hagan Lake Dam was completed in 1960, making it 66 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 Hagan Lake Dam?

Hagan Lake Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Hagan Lake Dam?

Hagan Lake Dam has a dam height of 19 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 Hagan Lake Dam last inspected?

Hagan Lake Dam was last inspected on June 3, 1980. 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.