The image showing the actual flightpath has the San Mateo Bridge just visible in the bottom RH corner.
Good spot DaveReidUK. I think the two bridges at bottom RH corner are the Dumbarton Bridges.
The narrow white bridge is probably the San Mateo Bridge. If so, the northerly first track shows the aircraft lining up with the 'runway' at the correct point.
I agree that the superimposition seems to be not to scale.