Auxiliary Dam No 2

PETIT JEAN RIVER-TR· Logan, Arkansas· Built 1966· Earth· 33 ft tall

High Hazard Water Supply State Government

Key Takeaway

Auxiliary Dam No 2 is classified as high hazard in Arkansas. It was completed in 1966 and is 60 years old. Its primary use is water supply. 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	33 ft (taller than 65.9% in AR)
Dam Length	415 ft
Dam Type	Earth
Max Storage	315 acre-ft
Normal Storage	168 acre-ft

Surface Area	18 acres
Drainage Area	1 sq mi
Max Discharge	970 cfs
Year Completed	1966 (60 years old)
NID ID	AR00894

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 25, 2017

State Regulated: Yes

Regulatory Agency: ANRC

Ownership

BOONEVILLE HUMAN DEVELOPMENT CENTER

State Government

Nearby Dams

Auxiliary Dam No 1

Logan, AR

High Hazard 34 ft

Booneville Reservoir Dam

Logan, AR

Low Hazard 45 ft

Boy Scouts Lake Dam

Logan, AR

Low Hazard 39 ft

Sixmile Creek Wid Site 09

Logan, AR

Low Hazard 34 ft

Sixmile Creek Wid Site 07

Logan, AR

Significant Hazard

Sixmile Creek Wid Site 10

Logan, AR

Significant Hazard 44 ft

Sixmile Creek Wid Site 06

Logan, AR

Significant Hazard 39 ft

Sixmile Creek Wid Site 05

Logan, AR

Low Hazard 53 ft

Frequently Asked Questions

What is the hazard classification of Auxiliary Dam No 2?

Auxiliary Dam No 2 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 Auxiliary Dam No 2?

Auxiliary Dam No 2 is owned by BOONEVILLE HUMAN DEVELOPMENT CENTER (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Auxiliary Dam No 2 built?

Auxiliary Dam No 2 was completed in 1966, making it 60 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 Auxiliary Dam No 2?

Auxiliary Dam No 2 serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Auxiliary Dam No 2?

Auxiliary Dam No 2 has a dam height of 33 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 Auxiliary Dam No 2 last inspected?

Auxiliary Dam No 2 was last inspected on April 25, 2017. 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.