Transbay Transit Center excavation work completed

Two years in the digging, crews have now completed excavation for The City’s Transbay Transit Center, marking a significant project milestone, the Transbay Joint Powers Authority announced Monday.

The process entailed removing 640,000 cubic yards of soil from the work site between Beale, Mission, Second and Howard streets, one of the largest excavations in San Francisco’s history and equivalent to 120 Olympic-size swimming pools. Much of the soil was sold for reuse on other construction projects and material with high clay content was sent to clean landfills.

“When this contract that is in the works right now first started, the target completion of excavation was in March, so we actually beat that by four or five weeks,” said Steve Rule, construction executive for Turner Construction. Crews can now continue to pour a 5-foot-thick layer of cement that is the foundation for the transit center slated to open in fall 2017.

The next big milestone in the project will occur in mid- to late summer when crews begin erecting the structural steel that will be part of the high rise, Rule said.

The excavation milestone for the center, designed to connect eight Bay Area counties and serve 11 transit systems, brings crews one step closer to opening the “Grand Central Station of the West,” according to the authority.Bay Area NewsdevelopmentPlanningTransbay Joint Powers AuthorityTransbay Transit CenterTurner Construction

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