Exchange Place turn around reopens
May 2003
Shani Wallis, TunnelTalk
- True to its intent, the Port Authority of New York and New Jersey will open the reconstructed Exchange Place Station in New Jersey in June and restart services to an interim World Trade Center Station in Lower Manhattan in December. Services of the Port Authority Trans-Hudson (PATH) trains were suspended when the collapse of the World Trade Center buildings on September 11, 2001, crushed the transit stations in the basement levels and water flooded the railway tunnels under the river.
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New turn-back tracks in the new Exchange Place station crossover
- Restoring services to Exchange Place Station has required reconstruction of the underground facilities to turn the through train station into a terminus, allowing trains to switch back from inbound to outbound. Restoring the Hudson River services required a strip out of the cast-iron lined tunnels and installation of a new direct-fixing, continuous-rail track from the interim station at the WTC Ground Zero site to the new Exchange Place Station, and installation of new services, cabling and power supply. The $300 million element of the $544 million restoration program was awarded in February 2002 to local JV Yonkers Contracting/Tully Construection/AJ Pegno Construction. Meeting reopening targets was extremely tight.
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Roadheader excavation
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Refit of the old Hudson River tunnels
- Drill+blast started last June on the new crossover connections and on work to modify existing tunnels at Exchange Place. Limited working hours and excessive overbreak however were major concerns. In July 2002 a small Doscoroad-header was tested and proved productive in the average 5,000psi - maximum 12,000psi - mica schist. As a result two larger roadheader machines, a 48 tonne Alpine unitand a 56 tonneVoest Alpine machine, were introduced and blasting gave way to roadheader excavation.
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PATH prepares for a new era - TunnelTalk, September 2002
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