Hermit Hollow Lake Dam

LARTTO CREEK· Franklin, Missouri· Built 1962· Earth· 33 ft tall
High Hazard Recreation Private

Key Takeaway

Hermit Hollow Lake Dam is classified as high hazard in Missouri. It was completed in 1962 and is 64 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 33 ft (taller than 79.3% in MO)
Dam TypeEarth
Max Storage159 acre-ft
Normal Storage82 acre-ft
Surface Area9 acres
Drainage Area249 sq mi
Year Completed1962 (64 years old)
NID IDMO31054

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: May 7, 1979
State Regulated: No

Ownership

TRUSTEES O HERMIT HOLLOW

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Hermit Hollow Lake Dam?

Hermit Hollow 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 Hermit Hollow Lake Dam?

Hermit Hollow Lake Dam is owned by TRUSTEES O HERMIT HOLLOW (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Hermit Hollow Lake Dam built?

Hermit Hollow Lake Dam was completed in 1962, making it 64 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 Hermit Hollow Lake Dam?

Hermit Hollow 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 Hermit Hollow Lake Dam?

Hermit Hollow Lake Dam has a dam height of 33 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 Hermit Hollow Lake Dam last inspected?

Hermit Hollow Lake Dam was last inspected on May 7, 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.