Related articles:
Canal
Chesapeake Bay Bridge-Tunnel
Gotthard Base Tunnel
Grade (slope)
Highway
Holland Tunnel
Isambard Kingdom Brunel
Lincoln Tunnel
Liverpool
Norfolk, Virginia
Pennsylvania Turnpike
Rail transport
Rapid transit
Richard Trevithick
River Mersey
Seikan Tunnel
Tunnel boring machine
Underground city
Key terms:
above sea level
aqueduct
arches
base tunnel
big dig
bored
bored under a metropolis
channel tunnel
crossings
disused
docks
dug
edge hill
edge hill in the east
excavation
freight
gotthard
gotthard road tunnel
ground conditions
holland tunnel
lime street
liverpool
london underground
longest
natural tunnel
oldest rail tunnel
pedestrian
precast
rail tunnel in the world
railway
railway line
railway tunnel
rapid transit
reuse
river mersey
road tunnel
s longest
samos
samos island
smuggling
tbm
trench
tunel
tunnel
tunnel boring machine
tunnel in the world
tunnel under
underpass
underwater tunnel
ventilation
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