For those interested in a larger-than-usual industry, I uploaded some photographs of Rocla Concrete Ties, Inc. into my Webshots industries gallery: http://community.webshots.com/scripts/misc.fcgi?action=invitePickup&uri=album/105655198NNngnr Here's a sample to give you an idea of what it looks like...
It would be interesting to see an aerial view. Get a feel for how the overall plant is laid out. Boxcab E50