The Vincent Thomas bridge, although not quite the size of the Golden Gate, is no small bridge:
It's also known as the bridge to nowhere" since it takes you to terminal island. If IT went down, it could do havac to ship traffic, but vehicular traffic can get around via two other bridges.
But the Golden gate would be more devasting to moral and commerce than the Vincent Thomas, and the Coronado would cause the Coronadoans (?) to have to resort to ferry's but no real commerce or moral damage. Not like the Golden Gate.