I was just looking at overhead images of Samois and noticed that there were two bridges onto the island at Samois--one at the north end and one at the south end.
It has been many years since I was there but my memory recalls that there was no bridge at the south end (coming from Samoreau) and there was only the nice, wide newer bridge at the north end and a more narrow bridge on the western side that arrived on the island about near the back of where the seating stands used to be.
Am I misremembering? Did they tear down that western bridge or did something happen to it (collapse, etc?) Maybe in the heavy floods a while back?