Penny Dam

COON CREEK-TR· Lyon, Kansas· Built 1999· Rockfill· 29 ft tall
Low Hazard Private

Key Takeaway

Penny Dam is classified as low hazard in Kansas. It was completed in 1999 and is 27 years old.

Physical Details

Dam Height 29 ft (taller than 67.7% in KS)
Dam Length570 ft
Dam TypeRockfill
Max Storage80 acre-ft
Normal Storage29 acre-ft
Surface Area5 acres
Drainage Area0 sq mi
Max Discharge1,801 cfs
Year Completed1999 (27 years old)
NID IDKS07904

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: Yes
Last Inspection: December 13, 2021
State Regulated: Yes
Regulatory Agency: KS Dept. of Agriculture

Ownership

PENNY, WILLIAM J

Private

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Frequently Asked Questions

What is the hazard classification of Penny Dam?

Penny Dam 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 Penny Dam?

Penny Dam is owned by PENNY, WILLIAM J (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Penny Dam built?

Penny Dam was completed in 1999, making it 27 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

How tall is Penny Dam?

Penny Dam has a dam height of 29 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 Penny Dam last inspected?

Penny Dam was last inspected on December 13, 2021. 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.