Uetliberg Tunnel, Zurich, Switzerland

The Uetliberg Tunnel, part of the new N4 / N20 Zurich western bypass in Switzerland, is the largest tunnel and stretch of roadway of the bypass at 4.4km.

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  The Uetliberg Tunnel, part of the new N4 / N20 Zurich western bypass in...
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  Basel tube.
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  Aerial view of the assembly area Landikon including construction areas...
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  Profile of Uetliberg Tunnel.
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  Boring at section Diebis.
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  Assembly of tunnel boring machine (diameter 5m).
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  Location map of Swiss highways around the Uetliberg Tunnel. (All images...

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