Rivers can be dangerous!

The sections of rivers downstream of dams, water intakes and hydroelectric power stations can become dangerous. Sluicing and releases of water take place regularly, especially in summer, causing a sudden rise in water levels. Islands, gravel banks and the riverbanks are quickly submerged.

These discharges of water are necessary for technical reasons.

Sluicing eliminates silt and sediment from the reservoirs and sand traps to prevent them from silting up.
Releases of water discharge the surplus water which accumulates when glaciers melt and after heavy rainfall.

Walkers, fishermen and canyoning enthusiasts are strongly advised not to stand in a river bed. There is a very real risk of being swept away by a violent current of water. This danger is even greater in gorges.

Warning notices clearly indicate which places are dangerous. Information is also circulated regularly by the owners and operators of hydroelectric installations, and by the relevant local authorities and tourism offices.

Campaign to increase awareness

Since 2007, there has been a sustained campaign of announcements in regional media (newspapers and radio) to reinforce the information given to footpath users. In addition, students are employed at various locations to warn walkers.