Showing 5 auto-routed bicycle routes (using Map of Fretheimtunnelen E 16graphhopper) between the two ends of the tunnel. Download gpx file: map24383225.gpx. Openstreetmap tags:
bicycle = no highway = trunk int_ref = E 16 layer = -1 length = 1360 maxspeed = 80 name = Fretheimtunnelen ref = E 16 tunnel = yes