If you are talking about the tunnel on the former rail line between Manchester and Sheffield: it is 5.7 km or 3.5 miles.
Totley Tunnel was created in 1893.
totley yes
yes she is totley smart
The present Cascade Tunnel is 7.79 miles long. The original Cascade Tunnel was 2.63 miles long.
Long Dock Tunnel was created in 1860.
The Thames Tunnel is 1,300 feet (396 meters) long.
The 4.3 miles (7 kilometres) Severn Tunnel which runs between England and Wales was the longest railway tunnel in the UK. However the Severn Tunnel runs under the river Severn, so therefore is not purely under land only. The Channel tunnel is longer, but is an international tunnel and therefore not only in the UK. The longest tunnel in the UK that is purely under land was until recently the 6,230-yard/3.5-mile; 5.7-kilometre Totley tunnel between Grindleford and Dore stations on the Manchester-Sheffield line on the outskirts of Sheffield in Derbyshire. This has now been superseded by the 10.120km (6m 507y) twin bores of the London 2 (east) tunnel, part of the Channel Tunnel Rail Link between Stratford International and Ebbsfleet International.
The M5 East Tunnel in Syndey is 8.55 km long.
The Hoosac Tunnel is 4.75 miles in length or 7.64 km long.
Mont Blanc Tunnel is 11.6 kilometres or 7.25 miles long
There is really no limit to how long a ants tunnel can get...but most of the time a ants tunnel can get to 3 to 5 feet deep into the ground...
The Eisenhower Memorial Tunnel is 1.6 miles long...almost two miles long.