Posted Jan 8, 2012, 11:12 PM
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New Yorker for life
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Join Date: Jul 2001
Location: Borough of Jersey
Posts: 51,918
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http://archpaper.com/news/articles.asp?id=5833
Lucky Seven: New York's 7 line extension steams ahead.
Detail of the lower mezzanine's arc.
Jan 7, 2012
Quote:
In the waning days of 2011, Shawn Kildare gave a tour 130 feet below Eleventh Avenue. Kildare, a senior vice president at the MTA, delivered some good news to the small group gawking at the huge caverns carved for the Number 7 Subway Extension. The project, he said, is ten months ahead of schedule and under budget. With the Second Avenue subway progressing in fits and starts, hobbled by community complaints, the new Number 7, which boasts few residential neighbors, looks poised to take the prize as New York’s newest subway exension.
The new station, engineered by Parsons Brinkerhoff, will take one of the system’s busiest train lines from its westernmost terminus at Times Square, to Eleventh Avenue and 34th Street—and perhaps, one day, to New Jersey. The extension may prove a viable alternative to the regional tunnel that New Jersey governor Chris Christie squashed in 2010. As currently planned, the new station will serve the mass-transit-challenged Javits Center and Related Hudson Yards project, to say nothing of Brookfield Properties’ Manhattan West proposal. It will accommodate 25,000 commuters per hour, and an additional six trains added to the line will find room to park and/or maneuver on extra tracks positioned just north and south of the new subway platform.
Along Eleventh Avenue the tunnel dodged Amtrak and Lincoln Tunnel tubes before curving east to meet the existing Number 7 tracks. This meant digging beside the Port Authority Bus Terminal while passengers disembarked 20 feet away. A few blocks west, the sandhogs borrowed beneath the Times Square/Eighth Avenue pedestrian passageway while commuters crisscrossed overhead.
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Workers prepare a new communication center beneath Eleventh Ave. as ventilation rises at right.
Subgrade work continues for parkland entrance to subway.
Two tunnels run east to meet the park entranc
Cross section from left to right (west to east) shows tracks and lower mezz, escalators, upper mezz, and park entrance.
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