Thanks for all the replys! Let's see, I'll try to address some of them ... The Bontrager's are Race Lites (not sure if that's good or bad) and only 6 months old. I'll probably investigate something with better wet weather traction. Are Gatorskins good for that?

I was wedged between parked cars and traffic when I hit the drain. But get this ... the drain had long slats going in the same direction as the tire line. I knew that was a disaster in the making so I hit it at a slight angle. Probably the reason I wiped out. And no, there was no paint or anthing on any of the drains that I can see.

Didn't know about reducing the tire pressure. I have it at 120 psi so I'll definitely lower it as well as look at some wider alternatives.

Lastly, I'll slow down. These 45 year old bones can't take this much jarring!