The section of the Roman Eifel aqueduct near Breitenbenden that was cut off during the construction of the road shows several technical details that give a clear insight into the Roman technology of aqueduct construction. The masonry of the sewer cheeks made of hand ashlars sits on top of the conduit channel made of stamped concrete (Opus camenticium). The vault, made of greywacke with the use of mortar, was built over a wooden falsework. The impressions of the planks of the scaffolding are still visible in the mortar! In 2014 the site was given a protective roof.