Posted by FSWood on June 12, 2012 
Want to say that I remember reading somewhere that outfits in the southeastern US, such as L&N, had an early interest in using concrete ties the in humid and swampy areas they passed through.
Posted by Chris Wilson on June 12, 2012 
Much of the CN network between Toronto and Winnipeg ; and Edmonton and the Pacific use concrete ties. Mostly all "conforce"... I find they are easier to work with, hold the gauge better, and are a smoother ride.
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