Autumn Lake Dam

UNNAMED TRIBUTARY BIG THUNDER CREEK· Brown, Indiana· Built 1969· Earth· 32 ft tall
High Hazard Recreation Private

Key Takeaway

Autumn Lake Dam is classified as high hazard in Indiana. It was completed in 1969 and is 57 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 32 ft (taller than 70.1% in IN)
Dam Length300 ft
Dam TypeEarth
Max Storage81 acre-ft
Normal Storage49 acre-ft
Surface Area7 acres
Drainage Area0 sq mi
Max Discharge87 cfs
Year Completed1969 (57 years old)
NID IDIN00558

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: Yes
Last Inspection: September 17, 2018
State Regulated: Yes
Regulatory Agency: IDNR

Ownership

RICHARD HOLLCRAFT

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Autumn Lake Dam?

Autumn 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 Autumn Lake Dam?

Autumn Lake Dam is owned by RICHARD HOLLCRAFT (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Autumn Lake Dam built?

Autumn Lake Dam was completed in 1969, making it 57 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 Autumn Lake Dam?

Autumn 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 Autumn Lake Dam?

Autumn Lake Dam has a dam height of 32 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 Autumn Lake Dam last inspected?

Autumn Lake Dam was last inspected on September 17, 2018. 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.