Showing 4 auto-routed bicycle routes (using Map of graphhopper) between the two ends of the tunnel. Download gpx file: map29425724.gpx. Openstreetmap tags:
bicycle = no foot = no highway = unclassified layer = -4 maxspeed = 50 tunnel = yes
bicycle = no foot = no highway = unclassified layer = -4 maxspeed = 50 tunnel = yes