One of the two gas links in Lake Geneva: This one has a diameter of 50 cm (1.6 ft), length 74 km (46 miles) |
That is: (under water) 6,000 tubes of 12 m (39 ft), joined together, numbered...
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Further away...
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When the large gas pipeline (tube 2019, diam 50 cm [1.6 ft]) crosses the former one, (diam 25 cm [0.8 ft], not visible here, see dotted line)... It is under these two fenders (see arrows), in the same axis. (These sit astride underneath to protect them from colliding with each other) |