Nathan,
The ones I have done in Wilson County, Kansas have either had plaques or missing plaques. I am not sure about the ones in Missouri.
That is indeed very unusual from what I have seen!
Very strange indeed. Do these other bridges have the plaque on the portal bracing? I didn't know that plaque style was ever used on RR bridges.
Thanks, Luke. That is good to know. I suspected that there might be others out there. I have done some Bridgehunting in Missouri, but not nearly as much as I have done in my home state of Kansas.
Robert, the design was unique to King's railroad trusses from what John and I have found, and several can be found in Missouri, including: https://bridgehunter.com/mo/pulaski/piney-army/
This bridge is more interesting that I had originally thought. Granted, I always considered to be rather significant due to its uncommon configuration as a modified Baltimore Truss.
I did not realize however that it has those unusual perforated portal bracings. If my count is correct, I believe that makes four bridges in Kansas with this type of portal bracing. I have not encountered it outside of Kansas but somebody might well find an example elsewhere. If so I would be interested to know about it.
This appears to be another Schaub variant truss:
https://archive.org/details/sim_enr_1904-03-24_51_12/page/29...