Detention Dam No Sp-6

EAST BRANCH WALNUT RIVER-TR· Butler, Kansas· Built 1995· Earth· 18 ft tall
Low Hazard Flood Risk Reduction Debris Control Local Government

Key Takeaway

Detention Dam No Sp-6 is classified as low hazard in Kansas. It was completed in 1995 and is 31 years old. Its primary use is flood risk reduction.

Physical Details

Dam Height 18 ft (taller than 16.5% in KS)
Dam Length1,080 ft
Dam TypeEarth
Max Storage156 acre-ft
Normal Storage14 acre-ft
Surface Area4 acres
Drainage Area0 sq mi
Year Completed1995 (31 years old)
NID IDKS09128

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: July 18, 1995
State Regulated: No
Regulatory Agency: KS Dept. of Agriculture

Ownership

UPPER WALNUT WJD NO 33

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Detention Dam No Sp-6?

Detention Dam No Sp-6 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 Detention Dam No Sp-6?

Detention Dam No Sp-6 is owned by UPPER WALNUT WJD NO 33 (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Detention Dam No Sp-6 built?

Detention Dam No Sp-6 was completed in 1995, making it 31 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 Detention Dam No Sp-6?

Detention Dam No Sp-6 serves the following purposes: Flood Risk Reduction, Debris Control. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Detention Dam No Sp-6?

Detention Dam No Sp-6 has a dam height of 18 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 Detention Dam No Sp-6 last inspected?

Detention Dam No Sp-6 was last inspected on July 18, 1995. 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.