N&W Bridges

[NW Modeling List]

Did the N&W (circa 1950s) have any truss bridges?  Or combination truss bridge/girder bridge?  
I have seen many pictures of trestle bridges (some quite impressive) on the N&W system, but not a single truss bridge I can find in print or video.  
I am modeling the N&W (all steam) and have a dramatic water feature I would line to cross as authentically as possible.  Any reference to good source material on N&W bridges would be appreciated.  I have O. Winston Links' photographic book "The Last Steam Railroad in America."  
Thank you for any photos you might be able to forward.  
Bill DemarestGainesville, Va.mgj21932 at yahoo.com
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