There is a segment missing on the NW approaches to the Burgermeester Waaijerbrug. The OSM map still has a segment missing. From (approx) the marked point on Leidschendamseweg there is a track to the North, crossing the dike, say 10m. Then there is a cycle track to the right with a ramp going up to connect to the the Beekoeverlibelpad bridge entry. 

Today now the Google maps satellite imagery is old, showing how things were about two years ago. OSM includes some but not all of the changes.

This needs a bit of fieldwork to get things accurate.