Dd No 2

STILLMAN CREEK· Lyon, Kansas· Built 2004· Earth· 22 ft tall
Low Hazard Flood Risk Reduction Local Government

Key Takeaway

Dd No 2 is classified as low hazard in Kansas. It was completed in 2004 and is 22 years old. Its primary use is flood risk reduction.

Physical Details

Dam Height 22 ft (taller than 34.2% in KS)
Dam Length1,500 ft
Dam TypeEarth
Max Storage987 acre-ft
Normal Storage118 acre-ft
Surface Area31 acres
Drainage Area2 sq mi
Max Discharge1,320 cfs
Year Completed2004 (22 years old)
NID IDKS09017

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: September 16, 2004
State Regulated: Yes
Regulatory Agency: KS Dept. of Agriculture

Ownership

ALLEN CREEK WD NO 89

Local Government

Nearby Dams

Dd No 103

Lyon, KS

Low Hazard 23 ft

Site No. 129

Lyon, KS

Low Hazard 19 ft

Dd No 128

Lyon, KS

Low Hazard 18 ft

Dd No 101

Lyon, KS

Low Hazard 18 ft

Dd No 122

Lyon, KS

Low Hazard 25 ft

Dd No 104 (Wilmore)

Lyon, KS

Low Hazard 29 ft

Dd No 105

Lyon, KS

Low Hazard 23 ft

Dam KS01337

Lyon, KS

Low Hazard 27 ft

Frequently Asked Questions

What is the hazard classification of Dd No 2?

Dd No 2 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 Dd No 2?

Dd No 2 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 2 built?

Dd No 2 was completed in 2004, making it 22 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 2?

Dd No 2 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 2?

Dd No 2 has a dam height of 22 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 2 last inspected?

Dd No 2 was last inspected on September 16, 2004. 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.