Dam and Levee Failure

What it is

Dams and levees are built to hold back or control water. A failure can release large amounts of water, causing fast-moving flooding downstream.

Why it matters in Tennessee

Tennessee has rivers, reservoirs, dams, and levees across the state. A failure or overtopping event can create dangerous flooding with little warning, especially for people downstream.

What to do before

• Know whether you live, work, or travel in an area downstream from a dam or near a levee.
• Learn local evacuation routes.
• Keep emergency supplies ready.
• Sign up for local alerts.
• Make a plan for pets, livestock, transportation, and medical needs.

What to do during

• Evacuate immediately if local officials tell you to leave.
• Move to higher ground if flooding is imminent.
• Do not drive through flooded roads.
• Stay away from rivers, streams, levees, and flood-control structures.
• Follow official routes and road closures.

What to do after

• Return only when officials say it is safe.
• Avoid floodwater and damaged roads.
• Stay away from unstable banks, levees, and structures.
• Report damage or hazards to local officials.
• Document damage before cleaning up.

Stay informed

Know your local risk and follow instructions from local officials during heavy rain, flooding, or dam and levee emergencies.