Probably no serious damage. You should take a look at all the control arms on the top and bottom of the wheel to make sure none of them broke.
I had the same thing happen last season with a light pickup - about the same speed, I couldn't stop on ice for an intersection and headed for the curb. I was worried for awhile but soon forgot all about it - no ill effects. In fact your mention of your mishap jarred my memory about mine - I had forgotten all about it.
My guess is all you did was scratch the wheel.