Steer clear of dam dangers
Dams, powerhouses and locks can release large amounts of water with little warning. Learn how TVA warns you — and how to stay safe during your favorite water recreation.
Water release schedules shift with weather and power demand. Large amounts of water can be released at any time. Check Lake Levels before you head out, and always obey posted warnings.
Why dams are dangerous
Avoid dams when water is being released through the spillway, turbines or a navigation lock.
The sudden release of a lot of water creates stronger currents and a deeper river. Even a few inches of fast-moving water can knock you off your feet.
Currents can be hard to escape, even in a motorized boat. These dangers can extend far below the dam or lock.
How TVA warns you
TVA uses five-layered warning systems at its dams. When any of them activate, leave the areas upstream and downstream of the dam immediately.
Warning signs
Posted on land and water to flag restricted zones, strong currents and rising water.
Horns
Sound before water is released. Leave areas upstream and downstream immediately.
Strobe lights
Flash before and during a water release from a hydroelectric plant. Exit the area right away.
Electronic spillway signs
Combine strobes and horns. Activated before and during a spillway water release. Heed them.
Bouys
Buoys warn approaching watercraft of a dam ahead.
See the signs in the field
Real warning signs and systems posted at TVA dams across the Valley region. Tap any image to enlarge.
Safety by activity
Pick how you plan to enjoy the water. Each activity has its own hazards and its own safety checklist.
Boating
The Tennessee River is a working navigation channel as well as a recreation destination. Keep your distance from dams, barges and turbulent water.
- Keep the motor running, even when drift fishing.
- Never anchor your boat below a dam.
- Stay seated when the boat is in motion.
- Follow navigation rules.
- Watch for barges — they have blind spots hundreds of feet ahead and to the sides.
- Stay clear of turbulent water from propellers, towboats or barges.
- Cross the main channel only in high-visibility areas.
- Never anchor in the channel or tie off to a navigation buoy.
- Take a boating education class through the U.S. Coast Guard Auxiliary or U.S. Power Squadrons.
Paddling
From peaceful streams to thrilling whitewater, paddling rewards preparation. Match water to your skill and dress for the temperature, not the forecast.
- Paddle water that matches your skill level.
- Wear a personal flotation device and a helmet.
- Never paddle alone.
- Do not paddle rivers or streams in flood stage after heavy rain.
- Avoid strainers — fallen trees and branches that let water through but trap paddlers.
- Dress to prevent hypothermia. Avoid cotton.
- Share your plan and return time with someone who can call for help.
Swimming
TVA operates designated swim beaches with marked areas for family fun. Whether at a beach or a favorite swimming hole, swim smart.
- Swim with others — never alone.
- Enter feet first. Hidden rocks and logs sit below the surface.
- Avoid strainers that allow water through but can trap a swimmer.
- Wear swim shoes to protect against sharp rocks, glass and slippery surfaces.
- Stay visible with bright clothing, a swim cap or a tow float.
- Use TVA designated swim beaches whenever possible.
Caught in water
Even a few inches of fast-moving water can knock you off your feet. If you are swept in, these steps can keep you alive.
- Drop anything that can weigh you down.
- Get on your back, nose up. Point feet downstream to avoid rocks and foot entrapment.
- When ready, swim diagonally across the current toward shore.
- Do not try to stand until you are in shallow, slow-moving water.
- If you are stranded on an island due to rising water, seek higher ground, stay there and signal for help.
Core safety rules for everyone
No matter how you use the water, these eight rules apply every time.
- 1Follow posted rules and warnings.
- 2Stay alert for changing weather, sirens or lights warning of a water release.
- 3Never go into the water alone.
- 4Always let someone know where you are going and how long you will be out.
- 5Always wear your personal flotation device (PFD).
- 6Stay out of restricted areas.
- 7Fish, swim or wade below dams only during low-flow periods.
- 8Plan an emergency exit from the water before you get in.
- 9Avoid alcohol while fishing, swimming or boating.
