"hairpin turns and severe switchbacks" are not as common as you might fear, at least not on US numbered highways. There are some state roads in California with "king pin" or total length restrictions, and one dirt road in Utah with tight turns. Otherwise even the tightest loops on paved highways are no sharper than a freeway cloverleaf or city intersection.
Wolf Creek Pass is the only thing that might give you problems, and there it will be the grades - up or down - not the tightness of the turns.
Disclosure - to me a 'severe switchback' is something that will require a 3 point turn, something you might have to do to turn around in the middle of your home street. Something that you can drive a 15-20 mph is not a severe switchback.