Hello everyone, this is my first post to the forums. I figured what way better than to share some drawings I found a few days ago while researching. They are Union Pacific Engineering drawings of just about anything to do with trackwork, like roadbed, track design, turnouts, road crossings, switch stands, etc. They are all PDF files, and just click on the title of the section to see them. These were adopted in 1998 and were revised in 2004. Hope somebody else can use them as well.
Here is the web address to get to them: http://www.uprr.com/aboutup/operations/specs/track/index.shtml