in Argyle Minnesota
near Lincolnshire, Illinois, on a golf course, this car was re-purposed as a covered bridge, there are two boxcar covered bridges and one flatcar bridge on this golf course.
across Blacklick Creek at The Golf Club, which also made use of many telephone poles to shore up the golfing areas, and railroad ties to make steps and line the sand traps
I found a website that sells flatcar bridges, for about 20k
Dave Birtch Dam bridge near Dillard Oregon is a flat car cut in half and the two pieces placed side by side.
and NOTHING online to see it.
when a bridge was in need of replacement on Miramar NAS, they removed the old one, and dropped a flatbed railcar into place that had the rolling gear removed. It's visible from the old highway 395, known as Kearny Villa Rd, as it goes through the old WW1 military Camp Kearny. This happened in 1996, I was there.
Flatcars come from the railroad companies with load ratings stenciled on the superstructure, with normal load ratings ranging between 140,000 to 180,000 pounds.
The cost for a 60-foot bridge with a 13-foot wide deck — minus the cost of delivery — is about $20,000, as opposed to $50,000 or so, for a site-built bridge
Many flatcars used for bridges are sourced from train wrecks, and derailed damaged flatcars that were aging out of service