This Way to the Forums!
<googlemap lat="51.423885" lon="-2.22765">
51.420834, -2.227821, Box Tunnel
To Bath: Middle Hill Tunnel
To London: Thingly Junction
The tunnel is 1 mile 1452 yards (2,937 m) in length, straight, and descends a 1 in 100 gradient from the east. Construction started in 1836, and the tunnel opened in 1841.
Box Tunnel in about 1850.
King Edward I coming out of Box Tunnel west portal. 9.9.06. © John Rawlings
The eastern portal of the tunnel with an entrance to a smaller quarry tunnel to the right. © Derek Hawkins, CC-BY-SA-2.0.