After the Kaiser Wilhelm Tunnel the line crosses the Mosel near Eller on a 281 metre long, five span steel plate girder bridge.

Immediately after the Alf-Bullay bridge the line runs through a 458 metre long tunnel under the Prinzenkopf mountain, thus avoiding the Zell loop of the Moselle.

The viaduct has 92 spans, each with internal diameter of 7.2 m. In Pünderich there was formerly an access point for passengers at the depot where the line to Traben-Trarbach branches off.

The facilities of the Gründerzeit era stations are often highly significant technical and cultural monuments, but they are sometimes in a poor condition.

In 1916 work began on a bypass of the Kaiser Wilhelm Tunnel (which had major ventilation problems in the age of steam, which grew with rapidly growing traffic, particularly as a major supply route to the Western Front during the first World War) along the southern side of the Moselle from Bullay to Karden along part of the Cochemer Krampen bends.

Planning was carried out before the First World War to provide a double track bypass for freight avoiding Trier and Ehrang to create a better connection to the Saar.

In 1917 construction began on a massive 600 metre-long viaduct in concrete with natural stone facing on the northern bank of the Moselle at Quint.

In the call for bids published by the Northern Railway Authority of the State of Rhineland-Palatinate[4] issued on 3 November 2010, a completely new rail schedule was drawn starting in December 2014.

[5] Being part of the statewide synchronized timetable "Rheinland-Pfalz-Takt 2015", electric multiple unit express trains will run from Koblenz to Trier.

[8] The line, despite its military origins, has achieved major economic significance in its region, including nearby France and Luxembourg.

The trains ran from Saarbrücken to Trier and on to Cologne over the Eifel Railway via Gerolstein or over the Moselle line via Koblenz.

In 1991 D-train services ran over the line from Saarbrücken via Koblenz, Cologne, Münster and Bremen to Cuxhaven, with a section of the trains running to Greifswald, at two-hour intervals.

On the Koblenz–Trier railway, the train runs as an RE, between Koblenz and Düsseldorf as an IC on behalf of DB Fernverkehr with the option of reserving seats and taking bicycles.

Hourly express trains were introduced between Koblenz and Saarbrücken when the national regular interval timetable was established in 1985.

In the summer of 2000 a service, known as the Moselle S-Bahn, was introduced between Wittlich and Trier, operating for part of the day at approximately 30-minute intervals.

In July 2011, the Zweckverband SPNV-Nord transport authority announced that DB Regio West had won the tender for the local network called "RE Südwest E-Traktion".

This railway line holds a major flow of heavy iron ore trains from the North Sea ports to the Dillinger Hütte steelworks in the Saarland.