The government has their own graders to do any dirt roads, but most are paved or chip sealed. I sometimes think that if they were gravel, at least you could grade them now and again when they get rough. I find speed to be an enemy, especially when heavy trucks are involved. I do a haul road into one of our gravel pits. It's actually a government road, but they don't maintain it. Mostly just camps and a few gravel pits. Takes about a day and a half to do it in the spring. If it is really dry, I can use up a new cutting edge no problem. You know the kind of material that makes that hissing sound as you scrape it. Too many miles to scarify so you lean wheels, articulate a bit set your jaw so you don't bite your tongue and off you go. A driver once told me any man that can grade a road with no fines left on it must have some idea what he's doing. Anyway, I tell the boys all the time. It only takes 40 minutes to get in the road at 50km an hour, you're paid by the hour, why do you need to go 80? They start going fast, and it starts to get wash boardy, then it gets worse and worse until it's full of potholes again.