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France, le Tunnel de Malpas sur le Canal du Midi, l'un des derniers défi de P.P. Riquet

The Malpas tunnel was drilled over a length of 170 meters, in sandy sandstone, with a constant risk of collapse in the winter of 1679-1680. It was not enough to reach the sea, it was necessary to reach Sète. This will be the last major project led by Paul Riquet, indeed, he died a few months later, on 1 October 1680. Roger.

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Photo details

  • Uploaded on August 6, 2009
  • © All Rights Reserved
    by Roger-11
    • Camera: Panasonic DMC-FZ18
    • Taken on 2009/07/31 18:22:12
    • Exposure: 0.025s (1/40)
    • Focal Length: 4.60mm
    • F/Stop: f/2.800
    • ISO Speed: ISO200
    • Exposure Bias: -0.33 EV
    • Flash fired