This bridge is an outstanding example of a Pratt truss bridge built by the King Bridge Company. An unusual detail can be found on the bottom chord near the hip vertical of the bridge. Here, the bottom chord does not connect to the vertical member, and instead the bottom chord has a pinned splice nearby. This detail, highly unusual on a Pratt truss bridge, seems reminiscent of the bottom chords of King Bridge Company bowstring truss bridges, where bottom chords were always spliced together in this manner. As such, this bridge shows some remnants of earlier design thinking of the 1870s continuing to survive into some of the 1880s designs of the company. The bridge is also noted for its built-up fishbelly floorbeams. The Historic American Engineering Record provided the following overview of the bridge: The Fort Griffin Iron Truss Bridge is the oldest functioning bridge in Shackelford County, Texas, and one of the state's oldest remaining trusses. It is also the last remaining pin-connected Pratt through truss in the county. Because it has survived with few alterations, the Fort Griffin Iron Truss Bridge is a remarkably intact example of an early metal truss bridge in Texas. Built to accommodate traffic between the county seats at Albany and Throckmorton, the bridge cuts through what used to Fort Griffin, a military checkpoint and cattle town. The Fort Griffin Iron Truss Bridge was nominated to the National Register of Historic Places in 1979.
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