Much of the system dates from the same era and handles 2000s era passenger loads. But yes, deferred maintenance has its cost; a coat of paint prevents the superstructure from rusting away, once that paint is gone and the superstructure has rusted, then it has to be replaced entirely.
That was the sticking point for this particular branch. It needed money in an era where trains were boring and the glorious automobile was our savior, so wasn't going to get any money. It turned out that was not the best long term solution, and that's the sad part. People were onto something with this whole "streetcar suburb" and dense ubran rapid transit system. But, it hit some rough patches, and here we are today. (Overrun by cars and their pollution, but without a transit system that would let people get rid of their car.)
That was the sticking point for this particular branch. It needed money in an era where trains were boring and the glorious automobile was our savior, so wasn't going to get any money. It turned out that was not the best long term solution, and that's the sad part. People were onto something with this whole "streetcar suburb" and dense ubran rapid transit system. But, it hit some rough patches, and here we are today. (Overrun by cars and their pollution, but without a transit system that would let people get rid of their car.)