Yes. Took me a LOT of trial and error to get a bridge working. I used the path tool to route a river over a terrain valley set to 20 feet. Then installed a "bridge0a" over the river. Be sure to set it, "can collide" or you won't be able to drive on it. Took me a while to figure that one out.
Then blend the ends of the bridge into the terrain to make a smooth ramp to drive up.
You can see the result on the center island of "Crags".
Hope this helps. Let me know if it isn't clear.