The tunnel is part of a 17.6 km - long section of new line .
The tunnel is situated between kilometres 245.410 and 254.829 of the old line ( DB network route number 4280 ) .
The tunnel is part of a 17.6 km - long section of new line and is situated between kilometres 245.410 and 254.829 of the old line ( DB network route number 4280 ) .