Showing 2 auto-routed bicycle routes (using Map of 13graphhopper) between the two ends of the tunnel. Download gpx file: map198991490.gpx. Openstreetmap tags:
highway = trunk layer = -1 lit = yes maxspeed = 80 ref = 13 tunnel = yes
highway = trunk layer = -1 lit = yes maxspeed = 80 ref = 13 tunnel = yes