Here is a sign the state put up on the south end of the town of Ouray, just before you start up toward Red Mountain Pass.
Do truckers run this route, some do, mostly is specialized truck, with automatic chains, auto sanders for the drive wheels. I worked for Ouray County as a deputy sheriff and as a deputy coroner for a number of years. Not long ago the Million dollar Highway was listed by one of the travel magazines as one of the top ten most dangerous highways in America. Keep in mind just because someone has a truck driver's license and a job driving, that doesn't mean they have any better judgment that anyone else. I have stopped a few trucks passing through Ouray, headed over Red Mountain, and required them to call their dispatch office to get an OK to drive over the pass. Most often, standing several feet away I would hear the dispatcher screaming over the phone telling the driver, that under no circumstances was he to take "their" truck over Red Mountain Pass.
Will you survive the drive? Probably will, but I have hauled enough bodies off that mountain to know that not everyone makes it. As mentioned, it isn't just your driving, and all it takes is one big screw up from an oncoming driver and you will have more problems than you know what to do with, IMHO. Two summers ago I had to hit the ditch on the south side of Red Mountain Pass when I came around a blind curve, over on the Chattanooga Switch area, and found an 18 wheeler straddling the center line. You could see the fear in the driver's face as he squeezed the steering wheel. Was so glad I was on the inside, next to the mountain face and that I didn't tear off the passenger side mirror on my Jeep.
I tend to recommend that drivers try the road first in their toad, if they are comfortable with the road then go for it. If not there are other roads headed south that are much easier to drive. Since the OP has done the drive on a motorcycle, he has a good idea of what the road is like. If you consider yourself to be a good mountain driver, go for it, but if you have any doubts, go around.
Both the rock tunnel and the snow shed should be over 13 ft but I don't remember the exact figures on either.
joe b.
Stuart Florida
Formerly of Colorado and Alaska
2016 Fleetwood Flair 31 B Class A w/bunks
www.picturetrail.com/jbpacooper
Alaska-Colorado and other Trips posted
"Without challenge, adventure is impossible".