Quote:
Originally Posted by Busy Bee
On the Purple Line Extension the running tunnels are TBM bored but the station boxes still require cut and cover construction. The speed and efficiency Metro contractors carried out excavation and temporary steel supported streets really is a feat that has gone underappreciated.
|
I know that the station boxes are still cut and cover. But with the tunnel boring for the tunnels, though more expensive, there is no disruption at street level, only at the station box construction sites.
I remember how awful it was along Hollywood Blvd. during the subway construction back then, as well as in downtown LA in the early 1990s. Tunnel boring is so much better.