I was pretty surprised when I pulled into a Iowa rest area to find an "oversized" load by truck. Had the Nikon in my lap and I decided to snap these three. The truck driver was from Northern Canada. He was polite enough to answer my city slicker questions. ( see pics ). This truck holds 6 tires going into Ontario, CN for large mining equipment. Each tire weighs 7500# so the aluminum trailer can only carry six at a time. These are the smallest tires they carry via motor transit. It's quite a piece of rubber.
OK.. I am wondering now .. "Why NOT ship by rail". Upon arrival home I made a small load for my Lionel consist. Pleasant memories. You truly learn something new everyday..