11 November 2014
Hardened No. 7 Subway Line Extension in NYC
The No. 7 Subway Line Extension is nearing completion, running west and south
from Times Square to serve the Javits Convention Center and west side development
of Hudson Yards. The line is unusually deep, about 130 feet, to pass
below several train tunnels along its route.
It requires extensive ventilation, electrical, fire protection, signal and
security systems from the subway tunnel to locations on the surface. High-rise
buildings are to be constructed around and over these combined utility
facilities.
For security of the subway these facilities are hardened with windowless,
thick masonry walls with security and blast protection at the required exit
doors along with ventilation louvers, the latter set well above the sidewalk.
The facilities' structure, architectural enclosures and equipment mountings
are acoustically and vibrationally designed to minimize adverse impact on
the high-rises which will house hotels, residences, offices and schools.
This presents the subway selected design drawings from 2007 and recent as-built
photos.
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Site J - West 33rd and 34th Streets and 11th Avenue
34th Street Entrance, combined utilities facility in background
High-rise to be constructed over and adjacent to subway ventilation-electrical
facility
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Site K - West 36th Street and 11th Avenue
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Site A - West 26th Street and 11th Avenue
Photo 7 November 2014 by Cryptome
West and south walls unfinished awaiting construction of high-rise around
the facility. High-rise terrace to be on roof of the facility.
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Site M - West 41st Street and 10th Avenue
Under construction, 9 November 2014, by Cryptome
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