Dangerous Areas Surrounding Dams
Hazardous Waters
Knowing and avoiding the dangers surrounding dams, locks, and powerhouses
Dangerous areas surrounding dams
If you like fishing or enjoy swimming and boating on TVA-managed reservoirs, you need to be aware of the possible hazards surrounding dams.
A large amount of water can be discharged through a dam without warning at any time. For example, when the demand for electricity is high, the turbines that generate electricity at a dam may start automatically, resulting in a significant increase in the flow of water within only a matter of seconds. Similarly, river operations for flood control can create rapidly rising water levels in otherwise shallow riverbeds, especially below tributary dams, which are usually located in steep terrain.
The cold water released through tributary dams even during the summer may also be a hazard. Cold-water temperatures can result in shock and hypothermia, and slippery rocks and hidden holes can cause an unexpected fall.
Even if you’re an experienced boater, angler, or swimmer, it pays to know the signs of rising water and the rules you should follow to ensure your safety.
Staying clear of potential dangers
Point to the red circles to identify the dangerous areas around dams, locks, and powerhouses.
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Signs of rising water
TVA is installing automated warning systems at several of its hydroelectric plants. Sirens will sound and strobe lights will flash to warn people in the area of impending changes in conditions just upstream and downstream of the dam.
Always be aware of these possible signs of rising water:
- Birds and other wildlife activity may increase
- Sounds of rushing water may become louder
- Water may become cloudy or movement may increase.
View information and maps on warning systems installed at specific TVA dams, locks, and powerhouses.
Apalachia (PDF, 179 kb)
Chickamauga (112 kb)
Fort Loudoun (119 kb)
Watts Bar (129 kb)