Williams Dam

TR-JOACHIM CREEK· Jefferson, Missouri· Built 1965· Earth· 26 ft tall
High Hazard Recreation Private

Key Takeaway

Williams Dam is classified as high hazard in Missouri. It was completed in 1965 and is 61 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 26 ft (taller than 43.5% in MO)
Dam TypeEarth
Max Storage125 acre-ft
Normal Storage93 acre-ft
Surface Area9 acres
Drainage Area143 sq mi
Year Completed1965 (61 years old)
NID IDMO30384

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: November 10, 1978
State Regulated: No

Ownership

MRS JEAN JEANS

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Williams Dam?

Williams 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 Williams Dam?

Williams Dam is owned by MRS JEAN JEANS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Williams Dam built?

Williams 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 Williams Dam?

Williams 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 Williams Dam?

Williams Dam has a dam height of 26 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 Williams Dam last inspected?

Williams Dam was last inspected on November 10, 1978. 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.