Imp. No. 1

Walker, Alabama· 35 ft tall
Significant Hazard Tailings Private

Key Takeaway

Imp. No. 1 is classified as significant hazard in Alabama. Its primary use is tailings. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 35 ft (taller than 88.3% in AL)
Max Storage69 acre-ft
Normal Storage0 acre-ft
Drainage Area1 sq mi
Max Discharge3,550 cfs
NID IDAL83475

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
State Regulated: No

Ownership

DRUMMOND CO. INC.

Private

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Strip Mining Impoundment Dam No 1

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Strip Mining Impoundment Dam No 2

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Imp No.1

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Significant Hazard 40 ft

Miller Steam Plant Water Storage Pond

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Miller Steam Plant Ash Pond

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Frequently Asked Questions

What is the hazard classification of Imp. No. 1?

Imp. No. 1 is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Imp. No. 1?

Imp. No. 1 is owned by DRUMMOND CO. INC. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Imp. No. 1?

Imp. No. 1 serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Imp. No. 1?

Imp. No. 1 has a dam height of 35 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.

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.