Scotland's Greens propose a 14.5km long subsea tunnel under the Firth of Forth
...€3.6b. There are several other sub-Alpine tunnels of recent construction. “The Öresund or Øresund Bridge between Denmark and Sweden includes both a 5-...Denmark: Breakthrough for the Flood Tunnel under Frederiksberg or Vesterbro in Copenhagen
Boring of the Flood Tunnel Under Frederiksberg and Vesterbro is finished The giant drilling machine "Sigrid" of 110 tonnes has just drilled the second...
cover tunnel photo by: Matt Brown from London, England / CC BY
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