Dd No 7

HOOVER BRANCH· Osage, Kansas· Built 1962· Earth· 41 ft tall

High Hazard Flood Risk Reduction Local Government

Key Takeaway

Dd No 7 is classified as high hazard in Kansas. It was completed in 1962 and is 64 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	41 ft (taller than 93.5% in KS)
Dam Length	2,100 ft
Dam Type	Earth
Max Storage	4.5K acre-ft
Normal Storage	171 acre-ft

Surface Area	34 acres
Drainage Area	5 sq mi
Max Discharge	12,830 cfs
Year Completed	1962 (64 years old)
NID ID	KS02409

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: August 28, 2019

State Regulated: Yes

Regulatory Agency: KS Dept. of Agriculture

Ownership

SWITZLER CREEK WD NO 63

Local Government

Nearby Dams

Jennings Dd No 4

Osage, KS

Low Hazard 30 ft

Kimball Dd No 5

Osage, KS

Significant Hazard 31 ft

Ahren & Droege Dd No 3

Osage, KS

High Hazard 27 ft

Erosion Control Dam

Osage, KS

Low Hazard 16 ft

Dam KS04159

Osage, KS

Low Hazard 21 ft

Dam KS01577

Osage, KS

Low Hazard 30 ft

Dam KS01581

Osage, KS

Low Hazard 44 ft

Dam KS04161

Osage, KS

Low Hazard 20 ft

Frequently Asked Questions

What is the hazard classification of Dd No 7?

Dd No 7 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 7?

Dd No 7 is owned by SWITZLER CREEK WD NO 63 (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Dd No 7 built?

Dd No 7 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 Dd No 7?

Dd No 7 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 7?

Dd No 7 has a dam height of 41 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 7 last inspected?

Dd No 7 was last inspected on August 28, 2019. 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.