Larken

TR-BIG RIVER· St. Francois, Missouri· Earth· 62 ft tall
Low Hazard Other Tailings Private

Key Takeaway

Larken is classified as low hazard in Missouri. Its primary use is other.

Physical Details

Dam Height 62 ft (taller than 97.6% in MO)
Dam Length750 ft
Dam TypeEarth
Max Storage107 acre-ft
Normal Storage107 acre-ft
Surface Area8 acres
Drainage Area0 sq mi
Max Discharge0 cfs
NID IDMO31146

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
Last Inspection: April 12, 2023
State Regulated: Yes
Regulatory Agency: Dam and Reservoir Safety Program

Ownership

Private

Nearby Dams

Dresser Minerals Dam Sec 24 (Dry)

Washington, MO

Low Hazard 29 ft

Blackwell Pond Dam

St. Francois, MO

High Hazard 50 ft

National Lead Industries Dam

Washington, MO

High Hazard 99 ft

Cadet Mine Tailings Dam

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High Hazard 97 ft

Dresser No. 10 Dam

Jefferson, MO

High Hazard 100 ft

Flying "S" Bar Ranch Dam

Washington, MO

High Hazard 62 ft

Porzeinski Lake Dam

St. Francois, MO

High Hazard 50 ft

Lower Dresser No. 4 Dam

Washington, MO

High Hazard 31 ft

Frequently Asked Questions

What is the hazard classification of Larken?

Larken is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Larken?

Larken is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Larken?

Larken serves the following purposes: Other, Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Larken?

Larken has a dam height of 62 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 Larken last inspected?

Larken was last inspected on April 12, 2023. 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.