I've just posted on my site a new custom map (note: the link is to a PDF file) featuring a wreck on an interstate overpass. The map is pretty straightforward, but note that the overpass is supposed to be elevated, the bright green grass squares are like the top steps of stairs, and any square that has any black-lined drawings in it should be treated as hindering terrain -- even if it's just a small part of the tanker trailer overlapping a square.

You can also play online with this map at my online gameboard.

The link here ond from your website are not working, but I was able to check it out in the online play ares. Very nice. I look forward to being able to download it.

OK, I think the links are fixed now.

do you have a thumbnail of the map assembled?

From what i can gather it looks nice

He does, it is the last one on his online gameboard page. It is the last link in his first post. The intersection is the bottom map on the list.