The Amtrak dome car discussion caused me ask if the Superliner platform could be lowered sufficiently to build new dome cars for east coast service - there may also be length and width issues. This made me wonder just how much clearance difference there was between east and west. While trying to locate that, I came across this article on what sounds like a massive and complex project.
https://tinyurl.com/y36x7kzf
For myself, the before and after photos aren't particularly interesting, as often it's difficult to see any visual difference at all, such as when an existing bridge is raised or the track is lowered. What I would have liked to see is a photographic time line showing all phases of a few typical projects. Nevertheless, I found myself sucked into reading many pages of it.
https://tinyurl.com/y36x7kzf
For myself, the before and after photos aren't particularly interesting, as often it's difficult to see any visual difference at all, such as when an existing bridge is raised or the track is lowered. What I would have liked to see is a photographic time line showing all phases of a few typical projects. Nevertheless, I found myself sucked into reading many pages of it.