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Columns beat peat on Austrian viaduct An innovative driven pile system is being used to combat difficult peaty ground on a motorway project in central Austria.

THE SOUTHERN section of Austria's A9 north-south autobahn from the A1 junction near Linz towards Graz was built in 1984, but near Kirchdorf, where the road crosses the River Steyr valley, it reduces to a two-way restricted section and traverses the mountains in tunnels.

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