Pittsburgh's
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PITTSBURGH, PA -
Tunnel boring under the Allegheny River is set to begin in late October
2007 for the North Shore Connector. Trucks
carrying the largest components of the tunnel boring machine (TBM)
arrived in Pittsburgh on August 4th from Herrenknecht
AG in Schwanau, Germany.
The 1.2 mile extension will connect the existing Pittsburgh light rail transit system (the "T") from downtown Pittsburgh to the North Shore, home to PNC Park, Heinz Field, the Korean War memorial, the Vietnam War memorial, and the Carnegie Science Center. The North Shore is also the future home of the Rivers Casino. The contractor for the tunnel project is
North Shore Constructors, a joint venture of
Trumbull Corp. and
Obayashi Corp. of San
Francisco. Completion of the $435 million
project is scheduled for 2011.
Three new transit stations will be constructed:
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July 4, 2011 |
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Source: Port Authority Transit
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Lowering the TBM |
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A Barnhart modular lift tower is used to lower the tunnel
boring machine into the ground. Barnhart had a similar tunnel
project in Atlanta. |
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Construction near PNC Park |
 Separation plant for excavated material created by boring |
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North Shore Connector
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| Subway construction near Heinz Field |
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| Underpinning S.R. 65 bridge piers |
 Source: Port Authority Transit |
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| Drilling a caisson next to a bridge pier |
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| Site of future North Side Station |
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| Forward shell of the Tunnel Boring Machine
(TBM) |
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| TBM components awaiting assembly |
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| North Shore receiving pit for the TBM |
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| PNC Park and Pittsburgh in the background |
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March 26, 2012 |
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Pittsburgh, PA – Trucks carrying the largest
components of the tunnel boring machine (TBM) that will construct
tunnels under the Allegheny River as part of Port Authority’s North
Shore Connector project are expected to arrive at West General
Robinson Street and Mazeroski Way on Saturday, August 4, 2007, at
approximately 9 a.m. and 11 a.m. |
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Other bored tunnels:
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