Old Railroad Bridge

These appear to be somewhat abandoned buildings and there were no signs stating we were forbidden access so we explored cautiously . .

My goal on our hikes is for Matt to see our area from different angles . .
Access trails from new entrances . . 
Look for 'hidden' areas  . . .
Find ideas for new ways to use what we see . .
   ie: " SHTF, how could you use this building?"

I would love to know what this building was once used for . .