Allen Fossil Plant - Ash Disposal Area Perimeter Dike (East)

TENNESSEE RIVER - OFFSTREAM· Shelby, Tennessee· Built 1967· Earth· 23 ft tall
Significant Hazard Other Federal Government

Key Takeaway

Allen Fossil Plant - Ash Disposal Area Perimeter Dike (East) is classified as significant hazard in Tennessee. It was completed in 1967 and is 59 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 23 ft (taller than 24% in TN)
Dam Length6,966 ft
Dam TypeEarth
Max Storage353 acre-ft
Normal Storage98 acre-ft
Surface Area80 acres
Drainage Area0 sq mi
Max Discharge393 cfs
Year Completed1967 (59 years old)
NID IDTN15801

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: Yes
Last Inspection: February 12, 2021
State Regulated: No

Ownership

TVA

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Allen Fossil Plant - Ash Disposal Area Perimeter Dike (East)?

Allen Fossil Plant - Ash Disposal Area Perimeter Dike (East) 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 Allen Fossil Plant - Ash Disposal Area Perimeter Dike (East)?

Allen Fossil Plant - Ash Disposal Area Perimeter Dike (East) is owned by TVA (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Allen Fossil Plant - Ash Disposal Area Perimeter Dike (East) built?

Allen Fossil Plant - Ash Disposal Area Perimeter Dike (East) was completed in 1967, making it 59 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 Allen Fossil Plant - Ash Disposal Area Perimeter Dike (East)?

Allen Fossil Plant - Ash Disposal Area Perimeter Dike (East) serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Allen Fossil Plant - Ash Disposal Area Perimeter Dike (East)?

Allen Fossil Plant - Ash Disposal Area Perimeter Dike (East) has a dam height of 23 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 Allen Fossil Plant - Ash Disposal Area Perimeter Dike (East) last inspected?

Allen Fossil Plant - Ash Disposal Area Perimeter Dike (East) was last inspected on February 12, 2021. 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.