Check out this 3D Model of the Buchanan, Iowa bridge that was developed by US Bridge when detailing the bridge. It’s known as “BrIM”, Bridge Information Modeling. According to Dennis Gonano of US Bridge, the BrIM was converted from AutoCAD to an Adobe PDF file. (Note: eSPAN140 was used to create the first iteration of the bridge design.)
Download and open the PDF file linked here and to the image below and you will be able to manipulate the model to view different bridge details such as beams, deck, railings, etc or turn off various bridge components, or change colors of things. Pretty cool tool.
The bridge was built quickly, using local crews. Check out the video from the Buchanan County, Iowa live webcam.