This train runs in Western Australia. There is something like 250 tons or more there. All on public roads.
Must be a lot of oomph in that little tractor. D16 maybe?
My back hurts just thinking about how much concrete that load will make.
A very rough calculation, figuring for 6 sack flatwork mud, comes up to around 650 yards. Not sure about tare weight on that setup, just figuring what the set of 2/3 air doubles I used to pull weighed, long hood Pete, and steerable pusher on the tractor.