MScFW
Nicht ganz so eindeutig. Der Rest der Staumauer hat mehr oder weniger einen Fahrweg, dieser Abschnitt ist aber nur 1,5 - 2 Meter breit, das wird eng.

https://wiki.openstreetmap.org/wiki/Tag:highway%3Dtrack
A trail or path that is not wide enough for a typical four-wheeled motor vehicle [2]. See highway=path, footway, cycleway, and bridleway.

Im Grunde ist es rein philosophisch, da diese Sackgasse keine Wendemöglichkeit bietet.

Das Fahrrad auf den Bilder ist etwa 1,9 Meter lang ...
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Not quite so clear. The rest of the dam has more or less a roadway, but this section is only 1.5 - 2 meters wide, which will be tight.

https://wiki.openstreetmap.org/wiki/Tag:highway%3Dtrack
A trail or path that is not wide enough for a typical four-wheeled motor vehicle [2]. See highway=path, footway, cycleway, and bridleway.

Basically, it's purely philosophical, since this dead-end road doesn't have a turnaround.

The bike in the pictures is about 1.9 meters long ...

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https://1drv.ms/u/s!AkwweEKKbe9Gh40mixuBiJFWLqx-xA