A3 motorway (Switzerland)

The A3 is a motorway in northeast Switzerland, running diagonally from France toward the southeast border, and passing by Zürich on the way.

The highway section has been extended since 1986 with the opening of the Kerenzerberg Tunnel (5.76 kilometres or 3.58 miles), which handles the road to Murg / Sargans.

The old six tunnels and the road on the shores of Lake Walen were converted to unidirectional operation and now form the carriageway to Weesen / Zürich.

Also initiated, with the opening of the Western Bypass, the first stage of the flanking measures pass the residential areas along the former "West tangent" in the city of Zürich.

The existing road trains, which were used for urban transit highway connection endpoints and Wiedikon Hardturm, were temporarily contracted on May 2, each for one traffic lane in each direction.

Glarner Alps as seen from the A3 motorway, Canton of Glarus , Switzerland.
Aerial photograph of the A3 motorway splitting into 2 routes.
The A3 motorway seen at the junction with the Uetliberg Tunnel, in Wollishofen , Zürich .