In recent years, LAX underwent a reconfiguration of the norther runways. I understand this was partly to accommodate the A380 operations which, when initially introduced, created some restrictions on other operations as a result of the runway spacing. They respaced the runways. I wondered whether any of the aerial photos I had taken at LAX showed the differences that had been made.
My first flight was during the reconfiguration process. The change to one of the runways had already been made and could be seen in the spare surface were the original northerly edge had been. Other work was underway around the thresholds and in the underrun. The photos from later show the finished configuration. The threshold of the inner runway has been moved from its original location and the underrun work is now complete. Things like runways feel like they should be so permanent but, as with any man made construction, they can be taken apart and rebuilt if that is what is needed.