Frd No 21

RICHLAND CREEK· Cowley, Kansas· Built 1975· Earth· 40 ft tall

High Hazard Flood Risk Reduction Local Government

Key Takeaway

Frd No 21 is classified as high hazard in Kansas. It was completed in 1975 and is 51 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	40 ft (taller than 92.6% in KS)
Dam Length	2,438 ft
Dam Type	Earth
Max Storage	3.9K acre-ft
Normal Storage	294 acre-ft

Surface Area	54 acres
Drainage Area	7 sq mi
Max Discharge	4,092 cfs
Year Completed	1975 (51 years old)
NID ID	KS04361

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: April 27, 2022

State Regulated: Yes

Regulatory Agency: KS Dept. of Agriculture

Ownership

TIMBER CREEK WJD NO 38

Local Government

Nearby Dams

Dam KS00449

Cowley, KS

Low Hazard 21 ft

Dam KS09232

Cowley, KS

Low Hazard 15 ft

Frd No 22

Cowley, KS

Low Hazard 28 ft

Farm Pond

Cowley, KS

Low Hazard 19 ft

Frd No 23

Cowley, KS

Low Hazard 21 ft

Frd No 24

Cowley, KS

Low Hazard 30 ft

Frd No 25

Cowley, KS

Low Hazard 33 ft

Frd No 18

Cowley, KS

Low Hazard 36 ft

Frequently Asked Questions

What is the hazard classification of Frd No 21?

Frd No 21 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 Frd No 21?

Frd No 21 is owned by TIMBER CREEK WJD NO 38 (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Frd No 21 built?

Frd No 21 was completed in 1975, making it 51 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 Frd No 21?

Frd No 21 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 Frd No 21?

Frd No 21 has a dam height of 40 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 Frd No 21 last inspected?

Frd No 21 was last inspected on April 27, 2022. 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.