This bridge is an example of a railing height truss bascule bridge. The railing height design refers to a deck truss whose trusses are raised up slightly above the deck like a pony truss, but just high enough so that the top chord of the truss acts like a railing. The design was developed in Chicago and was popular in that city both for a number of reasons. It offered a streamlined aesthetic, yet also had a utilitarian purpose of giving the top chord of the trusses a dual function as railings. It also increased the clearance under the bridge when lowered, while still avoiding the use of a full height pony truss. This is an unusual example of this truss type outside of Chicago. This California example is unusual because its truss and the roadway both have a very notable camber to them.
This bridge was designed by Edward Von Geldern who was one of the first registered engineers in Sutter County.
Bridge Photo-Documentation Original / Full Size Photos |
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Bridge Photo-Documentation Mobile Optimized Photos |
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CarCam: Northbound Crossing Full Motion Video |
Note: The downloadable high quality version of this video (available on the video page) is well worth the download since it offers excellent 1080 HD detail and is vastly more impressive than the compressed streaming video. Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing. |
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