Hello,
According to this post : https://www.vdl.lu/fr/actualites/travaux-sur-le-reseaux-chauffage-urbain-au-kohlenberg
And this plan : https://www.vdl.lu/sites/default/files/media/document/2021-09-04_chantier_rue_kohlenberg.pdf
This section is closed both ways from 4 September 5am and half to 6 September 5am : https://waze.com/fr/editor?env=row&lat=49.58907&lon=6.11427&marker=true&s=104201495&zoomLevel=17&segments=102024003
Regards