Members of the emergency services unroll a fiber mat next to a dam of river Theiss in Lower Austria, about 60 km (38 miles) west of Vienna June 5, 2013. The mats are used as base layer before putting gravel on, when building barrages against floods. Torrential rain in Salzburg, Upper and Lower Austria caused heavy flooding over the past days, forcing people to evacuate their homes. REUTERS/Leonhard Foeger (AUSTRIA - Tags: DISASTER ENVIRONMENT)