I am not afraid of "regular" bridges, but I am terrified of the mere thought of riding over one of those iron bridges that don't have a concrete or asphalt deck over the metal. I am unsure if I could even make myself ride over one, though I suppose that when I am finally faced with one that I will have no choice...Thankfully there are not many of those around

All of that being said, I have never ridden over a high-traffic bridge.