The San Francisco Connection

by Brian Fortner, Contributing Editor; Civil Engineering Magazine, ASCE World Headquarters, 1801 Alexander Bell Drive, Reston, VA.,

Serial Information: Civil Engineering—ASCE, 1998, Vol. 68, Issue 7, Pg. 48-49

Document Type: Feature article


An underground switchyard and storage facility for San Francisco's Municipal Railway challenged the limits of both cut-and-cover and tunneling in loose soil. The project was cited for its geotechnical engineering innovations to win a 1998 Outstanding Civil Engineering Award (OCEA) of Merit. Constructing the Muni Metro Turnback project, which consists of twin, steel-lined tunnels and a connecting concrete box structure, required careful monitoring of existing Bay Area Rapid Transit (BART) tunnels and nearby buildings.

Subject Headings: Underground storage | Tunnels | Subways | Storage facilities | Rapid transit systems | Project management | Geotechnical engineering

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