Norway building longest undersea tunnel

Deep below the North Sea, Norwegian engineers are working to
complete the Rogaland Fixed Link, or Rogfast, which will be the worldÕs
longest underwater road tunnel upon its planned completion in 2033 

NORWAY
E39
Bergen
Kristiansand
Oslo
Trondheim
North
Sea
100km
60 miles

Rogfast:
26.7km

Ryfylke Tunnel
Currently worldÕs
longest subsea
road tunnel at
14.4km 

Bokn
Karm¿y
Kvits¿y
Randaberg
Rennes¿y
Stavanger
Strand
Boknafjord
Ferry
North Sea
5km
3 miles

Rogfast is part
of overhaul of
E39 highway to
create ferry-free
coastal route by 2050

Tunnel will cut travel times
between Stavanger and
Bergen by 40 minutes

Design: Two tubes,
each with two traffic lanes

Cross passages: Placed every
250m to provide pedestrian escape
routes and emergency access

Ventilation: Ceiling-mounted jet fans
combined with vertical shafts

Bedrock: Tunnel
excavated by
drill and blast
method

Laybys
every 500m

CROSS SECTION
(depth in metres)
0
-100
-200
-300
-400

260m: Kvits¿y interchange
and Òhall of lightsÓ cavern

392m: Deepest point
(worldÕs deepest
tunnel)

Bokn
Randaberg
Sea level

Sources: CNN, Good News Network, Norconsult, The B1M
© GRAPHIC NEWS