New 7-span steel-composite deck-slab bridge built as part of the re-routing of the A4 autobahn in the Hörselbergen district near Eisenach. The JV 'ARGE Ingenieurbauwerke A4 Hörselberge' awarded Doka the contracts for two bridge structures on this route. For this, Doka developed one carriage for both bridge systems (the Böbertal and Nessetal viaducts).