This bridge is an extremely long bridge that is noted for the rare Wichert truss design. This modification of the traditional continuous/cantilever design is noted for an unusual design above the piers of the bridge, where the truss has a special shape that was designed to mitigate some of the problems that were involved with the design of continuous truss bridges in the first half of the 20th Century. The trusses on a Wichert take the shape of a rhombus over each pier.
Take a look at this page to learn more about this bridge and the Wichert design.
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Main Plaque (As Proposed In Original Plans) COUNTY OF ALLEGHENYBROWN'S HILL ROAD BUILT - 1937 COMMISSIONERS JNO. J. KANE GEO. RANKIN JR. JOHN S. HERRON CONTROLLER ROBERT G. WOODSIDE COUNTY DEPARTMENT OF WORKS JOHN F. LABOON DIRECTOR |
Above: Historical photo of the previous bridge at this location, which was built in 1897.
Pre-2015 Bridge Photo-Documentation Original / Full Size Photos |
A collection of overview and detail photos. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer |
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Pre-2015 Bridge Photo-Documentation Mobile Optimized Photos |
A collection of overview and detail photos. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer |
2015 Bridge Photo-Documentation Original / Full Size Photos |
A collection of overview and detail photos. This detail-focused gallery is divided into bridge sections. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer |
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2015 Bridge Photo-Documentation Mobile Optimized Photos |
A collection of overview and detail photos. This detail-focused gallery is divided into bridge sections. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer |
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