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Results for "#TBM #NATM #Tunnel #Tunnels #Tunnelling #LED #LEDLightning #LEDLights #LEDstrip #Supplies #Walkway #Pipe #Bracket"
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It is amazing how the tunnellers followed the chalk layer. Image by: Commander Keane [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)]
Tunnel Svein Magne Tunli Wikimedia Creative Commons
Alaskan Way Replacement Tunnel (SR99 tunnel( bored by Bertha produced by Hitachi Zosen)
Seattle City Council (WCC)
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