Seems to me he could almost certainly design a bridge with resistance to failure due to an earthquake. The material and principles involved in designing earthquake resistant structures are well understood and publicly available. The primary constraints on such structures are the cost and time to build them.

As for surviving "the big one"... it depends on how big? I'm not sure humanity in general knows how to build a bridge that could survive a dozen meters of shift between its piers. But that is a possibility in the largest conceivable earthquakes.