The Sewickley Bridge is a steel continuous truss bridge spanning the Ohio River between Sewickley and Moon Township, Pennsylvania, carrying State Route 4025 and the Orange Belt. It was built by American Bridge Company and opened on October 21, 1981.
Sewickley Bridge from upstream.
1910 Postcard image of the old Sewickley Bridge
Builder's plaque from the original Sewickley Bridge
Finial of the original Sewickley Bridge, preserved in a park in Sewickley
A continuous truss bridge is a truss bridge that extends without hinges or joints across three or more supports. A continuous truss bridge may use less material than a series of simple trusses because a continuous truss distributes live loads across all the spans; in a series of simple trusses, each truss must be capable of supporting the entire load.
The Astoria–Megler Bridge is North America's longest continuous truss bridge.
Smaller continuous truss bridge over the Illinois River at Lacon, Illinois
The Kingston-Rhinecliff Bridge
The Sciotoville Bridge (1916), the first continuous truss bridge in the United States.