Northeim was connected to the railway network on 31 July 1854 with the opening of the line from Alfeld to Göttingen. On 1 September 1871 the South Harz Railway to Herzberg and Nordhausen was opened. With the opening of the Solling Railway to Ottbergen on 15 January 1878, Northeim became an important railway hub. From now on, the railway had a major impact on the development of the town. Heavy air raids in February and April 1945 fully destroyed Northeim station and its representative station hall, which had been built in 1885. After the Second World War, work on rebuilding Northeim station began. In the late 1960s the present station building was constructed; in 1993 a travel centre was built, that replaced the traditional ticket counters. From 1988, trains of the first InterRegioline in the Deutsche Bahn stopped at the station. These services replaced the D-Zug expresses. In December 2002 the InterRegio trains were superseded by 2-hourly Intercity trains. On 15 November 1992 at 1.30 am there was an accident in the immediate vicinity of Northeim station that resulted in 11 deaths and 51 injuries. In 2014 the station was upgraded and modernised at a cost of 6.4 million euros. The western platforms, 1 to 3, have since had a height of 76 cm, the eastern ones, nos. 11 to 13, a height of 55 cm. In 2016 the underpass on the western side of the station was lengthened.
Connections
Local services
Northeim lies on the line from Hanover to Frankfurt am Main and Hanover to Würzburg, on which the metronom Eisenbahngesellschafttrains have operated hourly since December 2005. In addition the SouthHarz Railway via Herzberg to Nordhausen begins here, as does the Solling Railway to Ottbergen, on which trains run hourly or two-hourly.
Since the timetable change of 2009/2010 in December 2009 the number of Intercity trains calling at Northeim were significantly reduced. The majority of IC services run instead on the Hanoverian Southern Railway on the Hanover–Wurzburg high-speed line. Three pairs of Intercity trains remain in the Leine valley and stop, as was normal until 2009, in Alfeld, Northeim and Kreiensen.