Bobster1985 posted this AWESOME video from 1968 about the construction of BART. We had no idea that the conditions underground were so challenging -- apparently the air pressure was so different that the workers needed to hang out in a pressurized chamber before moving between the surface and tunnel. Neato.
1
Results tagged “tube”
"Glide Quietly"?!?!?!
« Previous
1
Next »
send a tip
tips@sfist.comsubscribe
Use an RSS reader to stay up to date with the latest news and posts from SFist.