Blackberry Hay Farm Dam

POND CREEK· Jasper, Missouri· Built 1965· Earth· 20 ft tall
High Hazard Irrigation Recreation Private

Key Takeaway

Blackberry Hay Farm Dam is classified as high hazard in Missouri. It was completed in 1965 and is 61 years old. Its primary use is irrigation. 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 20 ft (taller than 7.1% in MO)
Dam TypeEarth
Max Storage1.7K acre-ft
Normal Storage1.0K acre-ft
Surface Area160 acres
Drainage Area1,680 sq mi
Year Completed1965 (61 years old)
NID IDMO20196

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 20, 1979
State Regulated: No

Ownership

WILLIAM F LETHONE

Private

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Frequently Asked Questions

What is the hazard classification of Blackberry Hay Farm Dam?

Blackberry Hay Farm 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 Blackberry Hay Farm Dam?

Blackberry Hay Farm Dam is owned by WILLIAM F LETHONE (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Blackberry Hay Farm Dam built?

Blackberry Hay Farm Dam was completed in 1965, making it 61 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 Blackberry Hay Farm Dam?

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

How tall is Blackberry Hay Farm Dam?

Blackberry Hay Farm Dam 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.

When was Blackberry Hay Farm Dam last inspected?

Blackberry Hay Farm Dam was last inspected on June 20, 1979. 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.