Allegheny River Turnpike Bridge, Highway bridge in Cheswick, Pennsylvania, United States
The Allegheny River Turnpike Bridge consists of twin concrete segmental structures stretching 2,350 feet across the Allegheny River, carrying Interstate 76 traffic.
The original bridge, constructed between 1949 and 1951 by Modjeski & Masters, preceded the Interstate System before its replacement was built from 2007 to 2010.
The bridge design incorporates rockwork features on its piers that reflect the surrounding Pennsylvania landscape while serving as a vital transportation connection.
The structure accommodates three lanes in each direction, with acceleration and deceleration lanes that improved traffic flow and eliminated bottlenecks at Route 28.
The construction required 50,000 cubic yards of concrete, 8 million pounds of steel, and 3 million pounds of post-tensioning to create Pennsylvania's first balanced cantilever bridge.
Location: Pennsylvania
Official opening: November 2009
GPS coordinates: 40.53730,-79.82220
Latest update: March 11, 2025 19:05
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