The existing Bobingen-Kaufering railway since 1877 is a 22.6 km long single-track link between the Augsburg-Buchloe and Munich-Buchloe lines.

On 1 September 1847, the 60.19 km long connection from Augsburg Central Station via Bobingen and Buchloe to Kaufbeuren was opened up as a result of the Bavarian Act of 25 August 1843.

In Bobingen a branch was opened on 15 May 1877, which is a 22.6 km long Lechfeld track to Kaufering.

The Fox Valley Railway leads from there for 28.71 km to Schongau and has traveled for the first time on 16 November 1886.

So a 7.4 km long parallel track between Klosterlechfeld and the military training area was relocated.