This would be scary as hell, but try riding it with her again. Maybe a different line, in the other direction or just slower. If she's having issues with it too, her cleaning the section will help both of you.

I don't have many memories of my accident either. Just a few flashes and that's plenty. I do pass the scene fairly regularly but it doesn't bother me. But, if I'm ever at that intersection again on a rainy march evening (say around 6:34 p.m.) listen to the song "Sentimental Lady" by Bob Welch, the situation may change. Right now, my only serious trigger is the smell of barbecuing chicken.