The highway is in good condition but roadworks are in progress from the Rio Hardy area on and off to the Ensenada road. New asphalt is being laid down by machines carpeting about one third of the total width of the roadway in each pass. There are frequent flagmen to control traffic.
Drive with caution as there is the usual black, sticky, tar-plus-aggregate which will spray up into your wheel wells and onto the body if you go too fast. Leave the Mercedes at home for this trip.
Update 6 November 2016.