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Home › San Francisco Subway TBMs Dig Deep to Overcome Tunnel Challenges

 

San Francisco Subway TBMs Dig Deep to Overcome Tunnel Challenges

2013-09-04 20:14:46| ENR.com: Headline News

Tunneling 100 ft below a busy city with varying substructure is a delicate job, especially when the work comes within 8 ft of existing tunnels. Such is the case on San Francisco's new $1.5-billion Central Subway Project, which began major subterranean excavation last month.

Tags: san francisco deep san francisco

Category:Construction and Maintenance

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