Posted by showalterbj on December 5, 2017 
I've noticed that UP has replaced some SP signal bridges and masts. I wonder why they don't simply install Darth Vader signal heads & associated electronics on the existing ironwork. Has to do with $$$, no doubt.
Posted by bradley on December 10, 2017 
showalterbj, I wonder if it has to do with those skinny little ladders and walkways on top. Of course, those could be replaced as well, but the cost to bring them up to code must not be worth it?
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