Cholfirst Tunnel
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The Cholfirst Tunnel is a tunnel in Switzerland. The tunnel lies in the northern canton of Zuerich, and forms part of the Autostrasse A4. It was completed in 1996, and is Template:Convert long.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
The tunnel has three lanes (two heading for Zürich, and one heading for Schaffhausen). There is no central reservation.

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