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86th Street Cavern

Major Facets

Skanska’s second contract for the new Second Avenue Subway system in New York City.
Excavation of a cavern measuring 60 ft. tall and 70 ft. wide.
Approximately 176,500 cubic yards of material (168,000 rock/8,500 soil) will be removed for construction of the cavern.

Last updated: 8/16/2017

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