Didn't see this road in the thread. How about Tumble Falls Road coming off of Rt 29. Only 1/2 mile long, but strava has it averaging 11%
Tumble Falls
This is a beautiful road. Particularly this time of year. Great view of the river. Highly recommend you check it out. It's definitely one of the steeper climbs up from rt 29 but the grade is very consistent. Consistent grades always seem to mind-fuck me less. Once you get around the bend, it kind of levels out.