Greg,
Take what Irecall with a grain of salt, bu it seems to me that there was a two part problem with using that table in Chama.
The bridge is too big for the original pit, now filled on the grounds.
And supposing that you did dig it out and find and install a new bridge, then it would be too small for the C&TS engines that are now running through there.
And also I think the State Preservation Officer turned thumbs down on building a new larger pit and in the process removing the smaller historic one.
I think the Antonito idea is a good one if the C&TS ever has a big pot of money to play around with. Like after all their engines are restored.
Ted Miles