This is a design of bridge that is in general highly unusual, but can be found on multiple highway over railroad type bridges. They are likely the design of the railroad company... although highway bridges, some of the design is more typical of a railroad bridge. The unusual design lies in the composition of the truss members, which are a combination of angles and plate. This gives the bridge's truss members visually a somewhat more two-dimensional appearance compared to most truss bridges. A series of timber approach spans are also present at each end of this bridge. There is a dramatic "hump" to this bridge.
This bridge shows signs of alteration. Something has been removed from the trusses at a number of points. Empty rivet holes at points on the top and bottom chord are testimony to this. It is not sure what was removed, it might have been an outrigger, or it might have been a full-blown vertical member. Either way its a mystery since it is unclear why these elements which provide a benefit to the truss structure would be removed.
The bridge is skewed. End posts at two corners of the bridge have an odd vertical member 3/4 of the way up the end post. As this only occurs at two of the four corners of the bridge this appears to be something that is a result of the skewed bridge design.
A ca. 1920 date was found on www.bridgehunter.com for this bridge. This bridge appears to be older than that. Perhaps the 1920 date refers to a relocation date. This may be when the alterations occurred as well... or perhaps the date refers only to the alteration of this bridge, and the bridge was never relocated. Or the date could be a complete error. It is a mystery!
Original / Full Size Photos
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CarCam: Northbound Crossing
Full Motion Video
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