Welver–Dortmund

As early as 1847 the Cologne-Minden Railway Company (Cöln-Mindener Eisenbahn-Gesellschaft, CME) had opened the Dortmund-Hamm leg of its trunk line. To its south the Bergisch-Märkische Railway Company (Bergisch-Märkische Eisenbahn-Gesellschaft, BME) opened the parallel Dortmund–Soest line in 1855.

The KWE built its own line from Welver on its Hamm–Warburg line between the two existing routes and on 15 May 1876 it opened the first section to Dortmund. The Westphalian station in Dortmund was next to the Rhenish station, built two years earlier by the Rhenish Railway Company (Rheinische Eisenbahn-Gesellschaft, RhE) at the end of its line along the Wupper from Düsseldorf and its line along the Ruhr from Osterath. After the nationalisation of the railway companies in the early 1880s, the KWE and RhE stations were amalgamated as Dortmund South Station, which was largely destroyed in World War II and is now abandoned.

Dortmund–Mengede

On 19 November 1874, the RhE opened the last part of its Ruhr line from Dorstfeld for passengers. On 1 September 1878, the KWE opened a freight line, initially running parallel to the RhE line from the joint Dortmund station to Dorstfeld and then continuing via Huckarde KWE (renamed Dortmund-Huckarde Sud station in 1920) and Bodelschwingh KWE (later renamed Dortmund-Bodelschwingh and now demolished) to Mengede (now Dortmund-Mengede).

The KWE built the connection to Mengede station, which had been built by the CME as part of the Duisburg–Dortmund section of its trunk line in 1848, as a branch line to connect with the CME network, adding to the connection already established at Hamm.

Bodelschwingh–Sterkrade

A further extension was opened as follows:

• Route "16": 20 August 1879 (freight) Bodelschwingh–Crange

(route shared with of the Bergisch-Märkische Railway Company line—now route 2153—from Crange to Bismarck)

• Route 2246: 12 February 1879 (freight) Bismarck–Hugo
• Route 2246: 20 August 1879 (freight) Hugo–Horst Nord
• Route 2246: 12 November 1879 (freight) Horst Nord–Osterfeld KWE
• Route "18": 15 March 1880 (freight) Osterfeld KWE–Sterkrade KWE

Bodelschwingh–Bismarck

The section in between Bodelschwingh and Crange was closed on 1 July 1882.

The tracks between Castrop-Pöppinghausen and Herne initially continued to be used as a connection to the former Frederick the Great colliery, as well as a connection to the lines to the colliery’s no. 3, 4 and 6 pits and the line to no. 1 and 2 pits.

This section was not fully dismantled until 1892. In 1906, the branch canal of the Dortmund–Ems Canal was built on the route. The northern part of it is now part of the Rhine–Herne Canal, while the southern part has been filled in and its route was used for the construction of the A 42 autobahn.

Horst–Sterkrade

The section between Horst (Nord) and Sterkrade was closed on 15 October 1884 and completely dismantled by 1892.

The Hamm-Osterfeld line was built on the section between Horst and Osterfeld from 1 October 1901 and later put into operation. A section near Bottrop Hauptbahnhof was closed in 1968 and 1983 and partly sold, and the Bottrop freight yard was closed.

The route between the Oberhausen districts of Osterfeld and Sterkrade was along the Westfälischen Straße and the Richard-Wagner-Allee.

Welver–Königsborn

Renovated entrance building at Lenningsen station (2005)

The eastern section from Welver to Königsborn was closed on 29 September 1968 and dismantled. Its western section was converted into a trail. A kindergarten was set up in the renovated entrance hall of Lenningsen station.