Dieppe park loses shoreline to erosion

Dieppe Park, which is on the tip of the peninsula containing Habitat 67, is losing its shoreline. This part of the river is important for biodiversity, apparently, meaning you can’t just bring in a lot of bulldozers to pile it back up.

Was this peninsula a natural formation? Or was it created, or extended, as part of the Expo 67 earthworks? It certainly isn’t shown on this 1843 map, although this 1903 map has something labelled “guard pier” that might be involved.