I travel the state quite often. I-5, 2 lanes each direction. Biggest gripe, truckers and their 'snail races'. I think it's a game they play to see who can back up the most traffic! U.S. 99, my preferred. I think the States goal is 3 lanes each way from Sac to L.A. Lots of construction but a lot done too, 3 lane that is. I'm favoring 99 more and more.