Green Mt. Lake

TR-TENNESSEE RIVER· Madison, Alabama· Built 1974· Earth· 21 ft tall
Significant Hazard Fish And Wildlife Pond Recreation Local Government

Key Takeaway

Green Mt. Lake is classified as significant hazard in Alabama. It was completed in 1974 and is 52 years old. Its primary use is fish and wildlife pond. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 21 ft (taller than 65.6% in AL)
Dam Length600 ft
Dam TypeEarth
Max Storage186 acre-ft
Normal Storage120 acre-ft
Drainage Area1 sq mi
Max Discharge683 cfs
Year Completed1974 (52 years old)
NID IDAL02216

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

MADISON COUNTY

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Green Mt. Lake?

Green Mt. Lake 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 Green Mt. Lake?

Green Mt. Lake is owned by MADISON COUNTY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Green Mt. Lake built?

Green Mt. Lake was completed in 1974, making it 52 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 Green Mt. Lake?

Green Mt. Lake serves the following purposes: Fish And Wildlife Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Green Mt. Lake?

Green Mt. Lake has a dam height of 21 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.