Dd No 126

PESTER CREEK-TR· Lyon, Kansas· Built 1987· Earth· 26 ft tall

High Hazard Flood Risk Reduction Local Government

Key Takeaway

Dd No 126 is classified as high hazard in Kansas. It was completed in 1987 and is 39 years old. Its primary use is flood risk reduction. 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 50.5% in KS)
Dam Length	1,150 ft
Dam Type	Earth
Max Storage	406 acre-ft
Normal Storage	40 acre-ft

Surface Area	11 acres
Drainage Area	1 sq mi
Year Completed	1987 (39 years old)
NID ID	KS07613

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: June 21, 2021

State Regulated: Yes

Regulatory Agency: KS Dept. of Agriculture

Ownership

ALLEN CREEK WD NO 89

Local Government

Nearby Dams

Dd No 102

Lyon, KS

Low Hazard 24 ft

Dd No 104 (Wilmore)

Lyon, KS

Low Hazard 29 ft

Dd No 125

Lyon, KS

Low Hazard 24 ft

Dd No 115

Lyon, KS

Low Hazard 23 ft

Dd No 105

Lyon, KS

Low Hazard 23 ft

Dam KS04725

Lyon, KS

Low Hazard 20 ft

Dd No 103

Lyon, KS

Low Hazard 23 ft

North Star Subdivision Dam

Lyon, KS

Significant Hazard 25 ft

Frequently Asked Questions

What is the hazard classification of Dd No 126?

Dd No 126 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 Dd No 126?

Dd No 126 is owned by ALLEN CREEK WD NO 89 (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Dd No 126 built?

Dd No 126 was completed in 1987, making it 39 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 Dd No 126?

Dd No 126 serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Dd No 126?

Dd No 126 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 Dd No 126 last inspected?

Dd No 126 was last inspected on June 21, 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.