here are a couple of links to the story. the first one has a good video with shots of the massive crater in the highway and the damaged tracks.
http://www.4utah.com/mediacenter/default.aspx?videoId=22383
http://kutv.com/topstories/local_story_222165020.html
http://www.4utah.com/mediacenter/default.aspx?videoId=22383
http://kutv.com/topstories/local_story_222165020.html