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There have been a few ship tunnels built already, the longest one is 7km long https://en.wikipedia.org/wiki/Rove_Tunnel https://en.wikipedia.org/wiki/Rove_Tunne

• m463 6y ago
  Maybe looking closer at the title it was a qualifier: first norwegian ship tunnel vs first ship tunnel.
  • Rendello 6y ago
    The first line suggests not: > Norway has got the go-ahead to construct what's being billed as the world's first ship tunnel, designed to help vessels navigate the treacherous Stadhavet Sea. Which is odd because they don't seem too uncommon: https://en.wikipedia.org/wiki/Canal_tunnel https://en.wikipedia.org/wiki/Canal_tunnel
    • vidarh 6y ago
      This is the page with the coastal authorities [1] description: "If the project is realized, the Stad Ship Tunnel would be the world's first full scale ship tunnel of this size." So they call it the "first full scale ship tunnel of this size", so quite a few more qualifications. [1] https://www.kystverket.no/en/About-Kystverket/Stad-Ship-Tunnel-project/ https://www.kystverket.no/en/About-Kystverket/Stad-Ship-Tunn...
• dukoid 6y ago
  Probably first "salt water" tunnel?
• pantalaimon 6y ago
  But looks like this one is closed down after it partially collapsed.