Elbe Tunnel (1911)
Old Elbe Tunnel or St. Pauli Elbe Tunnel (German: Alter Elbtunnel (coll.) or St. Pauli Elbtunnel (official name)) which opened in 1911, is a pedestrian and vehicle tunnel in Hamburg, Germany. The 426 m (1,398 ft) long tunnel was a technical sensation; 24 m (80 ft) beneath the surface, two tubes with 6 m (20 ft) diameter connect central Hamburg with the docks and shipyards on the south side of the river Elbe. This meant a big improvement for tens of thousands of workers in one of the busiest harbours in the world.
Four huge lifts on either side of the tunnel carried pedestrians, carriages and motor vehicles to the bottom. They are still in operation, though due to the limited capacity by today's standards, other bridges and tunnels have been built and taken over most of the traffic.
In 2008 approx 300.000 cars, 63.000 bicycles and 700.000 pedestrians used the tunnel. The tunnel is opened 24 hours for pedestrians and bicycles. For motorized vehicles opening times are currently Monday to Friday from 5.20 AM to 8.00 PM, on Saturdays from 5.20 AM to 4.00 PM.
Work was done under pressure because the tunnel was below the water table of the Elbe. This type of building technique was used in the 19th century, in large engineering excavations, such as with the piers of bridges and with tunnels, where caissons under pressure were used to keep water from flooding the excavations, such as the foundations of the Brooklyn Bridge in New York.
But workers who spend time in high-pressure atmospheric pressure conditions are at risk when they return to the lower pressure outside the caisson without slowly reducing the surrounding pressure. Due to the problems associated with decompression sickness, many of the men working on the Elbe tunnel were affected by, what was known at the time, Caisson's Disease. Three men died, 74 suffered severe cases and more than 600 came down with light symptoms among 4,400 workers.
The tunnel opened on 7 September 1911.
In the tunnel an art exhibition (ElbArt (German)) and a long-distance running event Elbtunnel-Marathon (website of the organiser (German)) are taking place. In 2008 the tunnel participated in the Tag des offenen Denkmals (Day of the open heritage site), a Germany-wide annual event sponsored by the Deutsche Stiftung Denkmalschutz, that opens cultural heritage sites to the public.
The tunnel walls are decorated with glazed terra cotta ornaments displaying items related to the Elbe river. While mostly fish or crabs, a few show different items like waste and rats, too.
- Groß, p. 50
- Newspaper article on the marathon 2007 Runter in die Röhre (Down into the tube) Hamburger Abendblatt (German) Retrieved on July 31, 2008
- "Tag des offenen Denkmals 2008" (PDF) (in German). Behörde für Kultur, Sport und Medien (Ministry of Culture, Sports and Media). June 2008. Retrieved 2009-08-29.
- Groß, Lothar (2012). Made in Germany: Deutschlands Wirtschaftsgeschichte von der Industralisierung bis heute Band 1: 1800 - 1945. Books on demand. ISBN 978-3-8482-1042-8.
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