New Crystal Springs Bypass gets its TBM - PDF by ProQuest

VIEWS: 8 PAGES: 1

A single-shield tunnel boring machine (TBM) was lowered 47 m (155 ft) to the launch shaft to begin tunneling the New Crystal Springs Bypass Tunnel (NCSBT), a 1,280-m- (4,200-ft-) long horizontal tunnel in San Francisco, CA.

More Info
To top