page_title: Ruhr–Sieg railway
section_title: Line construction
hierarchical_section_title: Ruhr–Sieg railway / History / Line construction
caption_attribution_description: Deutsch: Ausschnitt Hagen-Siegen aus der Bahnkarte_Deutschland_1861
context_page_description: The Ruhr–Sieg railway is a 106 km long double-track, electrified main line from Hagen to Siegen via Iserlohn-Letmathe, Finnentrop and Kreuztal in the German state of North Rhine-Westphalia. The line, which has many tunnels, runs primarily through the valley of the Lenne. South of Altenhundem it crosses the watershed between the Lenne and the Sieg. The line was opened between 1859 and 1861 and is one of the oldest railways in Germany.
context_section_description: The line was built from 1858 to 1861 under the direction of Bergisch-Märkische Railway Company and took place with few problems. The construction of tunnels involved the Austrian engineer Franz von Rziha, who had already participated in the construction of the Semmering railway. Since narrow valleys had to be crossed, the Borsig company built a special locomotive, class 675, designed for its curves. At first the line was single track, but it was duplicated in 1870. The section from Hagen to Letmathe was opened on 21 March 1859, the Letmathe–Altena section opened on 17 July 1860 and finally the last part from Altena to Siegen opened on 6 August 1861. The Ruhr-Sieg line had been formally inaugurated on the previous day. In this ceremony a train derailed at Grevenbrück, without any complaints of injury.
  Stations were built in all the major towns. Tudor style stations were built in Plettenberg, Grevenbrück and Kreuztal, attracting attention as unusual designs for the region (today they are listed monuments). Engine sheds with turntables were commissioned in Letmathe (for 2 locomotives), Altena (6 locos), Altenhundem (6 locos), Kreuztal (2 locos) and Siegen (9 locos). In the late 1870s a depot was built at Finnentrop, close to the branch lines to Olpe (Bigge Valley Railway) and Wennemen (Finnentrop–Wennemen line). Together with Altenhundem it gradually developed into one of the centres for operations on the Ruhr–Sieg line. Altemhundem was primarily used for heavy freight locomotives for pushing trains up the ramp to Welschen-Ennest station. The depots in Letmathe and Kreuztal lost their importance because of their proximity to the major depots in Hagen and Siegen. Altena depot was abandoned at the beginning of the 20th century. As part of the electrification, Altenhundem depot was abandoned and Finnentrop depot was greatly reduced, as the line is now only used by diesel multiple units.
caption: Ruhr-Sieg line in the German rail map of 1861
exif: {}