Is Seattle a poor place to tunnel? Conditions are decidedly mixed, but that’s hardly stopped us. Seattle has proven to be a hotbed for innovation and testing of tunneling technology over the last 110 ...
Efforts to stabilize a collapsed section of a new $130-million metro tunnel in Barcelona are nearly complete. Related work on the system’s Line 5 is on hold while engineers seek ways to improve the ...
An independent study has confirmed that the single bore tunnel method is feasible for the BART (Bay Area Rapid Transit) Silicon Valley Phase II project, according to Santa Clara Valley Transportation ...
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