Allegheny River Turnpike Bridge, Highway bridge in Cheswick, Pennsylvania, United States
The Allegheny River Turnpike Bridge is a highway bridge consisting of twin concrete structures spanning the river and carrying Interstate 76 traffic between the communities on either side. The newer bridge replaced an older structure that once served the same crossing point.
An original bridge was built between 1949 and 1951, predating the Interstate System by many years and serving the region before major highway expansion. A newer structure was constructed in the following decade to handle increased traffic demands and provide better roadway standards.
The bridge connects communities on both sides of the river and has shaped how people move through this part of Pennsylvania. It remains a working part of daily life for countless travelers passing through the region.
The bridge is open to traffic around the clock and features multiple lanes in each direction with separate access and exit ramps for smooth flow. Drivers should expect typical highway conditions and plan for busy traffic times during commuting periods.
The bridge employs a specialized construction technique called balanced cantilever design, which allows sections to extend and support themselves without temporary supports during building. Stone detailing on the bridge piers echoes the natural rock formations found throughout the surrounding Pennsylvania landscape.
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