Fear of....

Is there a term for fear of bridges collapsing under heavy traffic?

That's very specific, I know. I don't mind driving on bridges at all, or ramps, or overpasses, etc. But from time to time I get stuck in heavy traffic on a bridge. When this happens, sometimes, not always, I begin to imagine the bridge collapsing under the weight of all the cars (and sometimes trucks, too).

I don't panic. I don't feel an overpowering need to get off the bridge (which isn't even possible). But I do begin to feel uneasy until I reach the other end. I do know bridges are over-engineered anyway, by design. They can support much more than bumper to bumper traffic stretching all across the deck, plus winds and even tremors (in the 85 Mex City quake, no bridges fell that I know about).