Lingenauer Hochbrücke, Road arch bridge in Vorarlberg, Austria

The Lingenauer Hochbrücke is a reinforced concrete arch bridge connecting Lingenau with the Müselbach district of Alberschwende in Vorarlberg. Its two-hinged arch has a span of 210 m and a rise of 45 m, formed by a twin-cell hollow box 6.60 m wide and 3.80 m high. The 10.30 m wide roadway girder rests on top, and the bridge crosses the Bregenzer Ach 90 m above the river.

Built from 1964 to 1968 to plans by Franz Aigner and opened in 1969, the bridge replaced the winding old road that dropped steeply into the Ach valley. Its completion finished the Hittisauer Straße (L 205), linking the Vorderer Bregenzerwald to the Bregenzerwaldstraße (L 200). At its opening it was the seventh-largest bridge of its kind in the world.

The bridge carries the Hittisauer Straße (L 205), completed with the bridge's opening, which gave the Vordere Bregenzerwald between the Müselbach and Lingenau terraces a direct link to the Bregenzerwaldstraße (L 200). It replaced the winding old road that dropped steeply into the Achtal. Since 2011 a mesh fence runs along both sides of the deck.

The bridge carries the Hittisauer Straße (L 205) over the Bregenzer Ach at a height of 90 m, linking Müselbach with Lingenau and connecting the Vorderer Bregenzerwald to the Bregenzerwaldstraße (L 200). Since 2011 a grid has run along both sides of the deck, so the view down into the valley is seen through the mesh.

At its opening in 1969, the bridge was the seventh-largest structure of its kind in the world. Its two-hinged arch rises 45 m above the Bregenzer Ach, with a span of 210 m. In 2011, a mesh fence was added on both sides to prevent suicides.