The BAM-layout requires a toll plaza to be built right in front of the spot where the Oosterweel tunnel is to go underground (now the Sint-Annabos site). The tunnel then runs underneath the Schelde and comes up above ground level on the right bank parallel with Scheldelaan at Noordkasteel, where the road turns into an ascending junction with approach and exit ramps in all directions. This junction then turns into a connective structure guiding one driving direction above the other. This structure ascends toward a double deck viaduct near the Hogere Zeevaartschool, where it crosses Oosterweelsteenweg.