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Bay Area Tube Link Jackets Port Of Oakland Expansion
Construction of linked concrete train tubes for the Bay Area rapid transit begins with launching 24 by 47 foot sections. Sections are towed to a pier for 27 inch concrete lining totaling over 4200 cubic yards, then sunk and dredged into a 60 foot trench to form a new Port of Oakland facility. A $1.5 million screed barge places gravel, and the tubes are aligned with neoprene gaskets and submerged until pressure seals. First San Francisco side tube to be laid near Ferry Building next winter, linking at Yerba Buena Island in mid 1969, with service slated for 1970.
MENTIONED IN THIS ARTICLE
San Francisco
San Francisco-Oakland
San Francisco Bay
San Francisco Bay Area
San Francisco-Oakland Bay Bridge
Bay
Bay Crossing
San Andreas
Hayward
Port of
Oakland
Usama
Yerba Buena Island
Rapid
Linkinng Dan Lally Sy Cone
Alameda
Contra Costa Counties