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80 Feet Below: Scenes From The Central Subway's Subterranean Construction

Fri January 13, 2017 - Southeast Edition
Construction Equipment Guide

Construction equipment deep below Fourth Street.
Construction equipment deep below Fourth Street.
Construction equipment deep below Fourth Street. The drill rig (stationed at the cross-cut cavern entrance under Chinatown) has multiple arms. Photos: SFMTA/Flickr

Deep underneath the streets of San Francisco, workers have been busy constructing the Central Subway.

The $1.578 billion project will extend Muni's T-Third metro line, providing a 1.7-mile direct transit link between the Bayshore/Mission Bay neighborhoods and SoMa, downtown, and Chinatown.

In addition to a street-level station at 4th and Brannan, three subterranean subway stations are currently under construction: the future Yerba Buena/Moscone, Union Square/Market Street, and Chinatown stations.

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