Benson Lake Dam

FRENE CREEK· Gasconade, Missouri· Built 1966· Earth· 25 ft tall
High Hazard Recreation Private

Key Takeaway

Benson Lake Dam is classified as high hazard in Missouri. It was completed in 1966 and is 60 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 25 ft (taller than 23.5% in MO)
Dam TypeEarth
Max Storage54 acre-ft
Normal Storage14 acre-ft
Surface Area4 acres
Drainage Area144 sq mi
Year Completed1966 (60 years old)
NID IDMO30667

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 24, 1980
State Regulated: No

Ownership

CLIFFORD BENSON

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Benson Lake Dam?

Benson 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 Benson Lake Dam?

Benson Lake Dam is owned by CLIFFORD BENSON (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Benson Lake Dam built?

Benson Lake Dam was completed in 1966, making it 60 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 Benson Lake Dam?

Benson 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 Benson Lake Dam?

Benson Lake Dam has a dam height of 25 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 Benson Lake Dam last inspected?

Benson Lake Dam was last inspected on April 24, 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.