sentences:  The official opening of this raiylway line on 1 May 1854 promoted passenger and freight traffic.The express mail wagon connection from Dillingen an der Donau to Günzburg was shortly thereafter routed via Lauingen and Gundremmingen to Offinger Bahnhof.A Bavarian law of 29 April 1869 commissioned the construction of a railway link between Günzburg an der Donau and Donauwörth, the Donautalbahn.