Lake Ja-Ha Dam

TR-BLYTHES CREEK· Miller, Missouri· Built 1967· Earth· 22 ft tall

High Hazard Recreation Private

Key Takeaway

Lake Ja-Ha Dam is classified as high hazard in Missouri. It was completed in 1967 and is 59 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	22 ft (taller than 14.9% in MO)
Dam Type	Earth
Max Storage	94 acre-ft
Normal Storage	68 acre-ft

Surface Area	8 acres
Drainage Area	40 sq mi
Year Completed	1967 (59 years old)
NID ID	MO30251

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: April 28, 1980

State Regulated: No

Ownership

ALEXANDER C. OLDS

Private

Nearby Dams

Munson Dam

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Town & Country Lake Dam

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Bond Lake Dam

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Bittle Lake Dam

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Yows Lake Dam

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Washburn Lake Dam

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Dalton Dam

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Indian Creek Hills Lower Lake

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Significant Hazard 54 ft

Frequently Asked Questions

What is the hazard classification of Lake Ja-Ha Dam?

Lake Ja-Ha 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 Lake Ja-Ha Dam?

Lake Ja-Ha Dam is owned by ALEXANDER C. OLDS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lake Ja-Ha Dam built?

Lake Ja-Ha Dam was completed in 1967, making it 59 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 Lake Ja-Ha Dam?

Lake Ja-Ha 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 Lake Ja-Ha Dam?

Lake Ja-Ha Dam has a dam height of 22 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 Lake Ja-Ha Dam last inspected?

Lake Ja-Ha Dam was last inspected on April 28, 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.