This German Wikipedia article has a list of all "Autobahn-Behelfslandeplätze", and it looks like out of originally 29, only 9 are still usable: https://de.wikip

This German Wikipedia article has a list of all "Autobahn-Behelfslandeplätze", and it looks like out of originally 29, only 9 are still usable: https://de.wikipedia.org/wiki/Notlandeplatz_auf_Stra%C3%9Fe#Autobahn-Behelfslandepl%C3%A4tze https://de.wikipedia.org/wiki/Notlandeplatz_auf_Stra%C3%9Fe#... Trivia: Ramstein Air Base was originally also an autobahn air strip used by the nazis during the last months of the war, then the US forces occupied it, and the autobahn had to be rerouted.