a thoughtful web.
Good ideas and conversation. No ads, no tracking.   Login or Take a Tour!
comment by kleinbl00
kleinbl00  ·  3423 days ago  ·  link  ·    ·  parent  ·  post: Seattle may join the super tall skyscraper club

Most of Seattle's tunnels are cut and cover, though. That allows you to bank and stuff. I-90? Cut'n'cover. 99 under downtown? Cut'n'cover. The drilling process they're using is the same one they used for the Brightwater conveyance corridor and that didn't go so smoothly.





tehstone  ·  3423 days ago  ·  link  ·  

The Beacon Hill, Capitol Hill and ULink tunnels were all bored. And back in the day they'd dig that shit out by hand with picks, shovels and wheelbarrows. Maybe we should go back to that.