Even though the Death Cab for Cutie song is called "Bixby Canyon Bridge," the proper name for this 30s landmark is "Bixby Creek Bridge," following the naming convention of other bridges in the area ("Rocky Creek Bridge," etc). None are as expansive or majestic as the Bixby Bridge; in fact, most barely any sort of canyon.
Also, in the song, Ben Gibbard sings about descending a cliff under this bridge. As you can probably tell from the photograph, such a maneuver would be incredibly dangerous and would probably result in anybody that attempts it falling far to his or her death in the canyon below. You can't see it in the photograph, but I was actually standing next to a large sign warning visitors not to get too close to the cliffside for this very reason.