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Subway Extension Completes First Phase

NEW YORK CITY-Tunnel boring machines have reached the southern wall of what will be the Far West Side terminus of the 7 subway line.

By Paul Bubny | Updated on December 21, 2009

NEW YORK CITY-The first phase of the $2.1-billion expansion of the number 7 subway line to Manhattan’s Far West Side is complete, the Bloomberg administration and the Metropolitan Transportation Authority said Monday. A pair of 1,000-ton tunnel boring machines has mined a total of 2,900 feet to reach the southern wall of what will be the line’s 34th Street station at Eleventh Avenue.

Extending the subway line, which currently terminates underneath Times Square, is considered a linchpin of redeveloping the Hudson Yards area. The neighborhoods around the MTA’s West Side rail yards currently are not served by mass transit. “The redevelopment of the Hudson Yards has been talked about for decades, but with the expansion of the number 7 line, its potential will finally be realized,” says Mayor Michael Bloomberg in a statement.

One of the boring machines has already started mining north of the station cavern toward 42nd Street, where the 7 line currently terminates, while the other is being pulled through the cavern and will begin mining in a few weeks. Since the 7 extension will run under the tracks of the Eighth Avenue Subway lines as well as Amtrak and New Jersey Transit tunnels, excavation and underpinning of the Eighth Avenue Subway line is under way. This is to allow the new tunnels to tie into the existing 7 Line tail tracks at Times Square.

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