Pallisades has this issue too, even without trees. There are some hand/traffic-rails or something near the bridge. Running into them will 1-hit a BA. I think I could run into one of these at full speed butt naked and not die. I'd prefer not to, as I'd trip and the road would hurt me, and it's possible I might get my arm or leg caught and it would break, but I wouldn't die. And covered head to toe in advanced battle armor, I think I'd come out without even a scratch.