For 10km haul you are looking at 3-4 either 14 or 16 series graders if conditions are poor. If conditions are that poor I would suggest running a combination disk/box blade instead of two of the graders to dry the road/knock ruts down, then a grader for each to reshape the road. Another important thing in haul road maintenance is proper watering. Water trucks knock dust down (safety) and allow the road to compact. Af
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