Share this: Facebook Twitter LinkedIn Wednesday, November 20, 2013 Related Press Releases Tunnel Boring Machine “Big Alma” Launches, Joining Her Twin “Mom Chung” to Construct Central Subway Tunnels Documents Press Release--Tunnel Boring Machine Big Alma Launches 11.18.13.pdf
Tunnel Boring Machine “Big Alma” Launches, Joining Her Twin “Mom Chung” to Construct Central Subway Tunnels