well, I have to agree with amandasgramma and say california, they have the worst roads of all the roads I have traveled. esp since I haven't been on I-10 in Louisiana yet. the last road I travel led calif was on , is it 93 or 95 south of vegas going toward needles, speed limit 55 for trucks and there were so many trucks to pass and no passing lanes any way, plus so many pot holes, I think 20 per mile if I added right, so the trucks had to drive 35 mile per hour so they wouldn't destroy their payloads and it was horrible. I decided to take the long way around from now on. I am going to kingman and then over to Lake Havashu. worth not blowing a tire or two with no where to park to change it.