So the Bavarian state parliament, the Landtag, decided to build a single-tracked cross-country line from Deggendorf via Eging to Kalteneck with a junction to the Ilz Valley railway, passing the requisite law on 26 June 1908.

The liability for contentious land acquisition was taken on by Deggendorf, Hengersberg and Passau on behalf of the state railway.

The centre section, 21.66 km long, went into service on 1 August 1914 on the eve of the First World War without much ado.

For the train services, the Bavarian Lokalbahn engines at the locomotive depots (Bahnbetriebswerke) of Plattling and Passau were made available.

With the increase in private transport the number of passengers on this line steadily waned, although additional stops were added and operations were switched to railbuses.

The Deggendorf Hafen (exclusively)–Hengersberg section was transferred on 1 September 2007 as a private industrial line to the ownership of the DHB Grundstücks GmbH + Co. KG.