The Schmitt Tunnel is the bypass tunnel of Zell am See and road tunnel of the Pinzgauer Straße (B 311) in the province of Salzburg. The tunnel has a length of 5,111 meters and runs west parallel to the north-south through-town of Zell am See. Completed in 1996, the tunnel is single-tube and has two lanes. In the period from 2023 to 2030, escape and rescue routes will be retrofitted in the Schmitt Tunnel and, in parallel, operational and safety measures (E&M refurbishment) will be upgraded. In order to be able to plan and coordinate this work efficiently, a tunnel scanner survey is to be carried out as a basis for planning and also serves to document the structural condition.