There are four classes of road tunnels in China by length. Super-long tunnel (>3,000m) Long tunnel (1,000m-3,000m) Middle-tunnel (250m-1,000m) Short tunnel (<250m) By 2012, there are 10,022 road tunnels and 8,052.7 km in total length in Mainland China, including 441 super-long tunnels with 1,984.8 km in total length and 1,944 long tunnels with 3,304.4 km in total length. This page lists the road tunnels longer than in Mainland China. Notes References Long China, Road tunnels China, long Tunnels, road, long Road tunnels