Editing Detroit–Windsor tunnel (section)

==Overview==
The tunnel is {{convert|5160|ft|m|0}} long (nearly a mile). At its lowest point, the two-lane roadway is {{convert|75|ft|m|0}} below the river surface.<ref name="DWT"/> There is a wide [[no-anchor zone]] enforced on river traffic around the tunnel.

The tunnel has three main levels. The bottom level brings in fresh air under pressure, which is forced into the mid level, where the traffic lanes are located. The ventilation system forces vehicle exhaust into the third level, which is then vented at each end of the tunnel.<ref name="DWT"/>