reduced, making it unprofitable. However, the seasonally fluctuating rail transport of agricultural produce such as sugar beet or fertiliser also decreased because of the motorisation of the farmers and the agricultural trade increased significantly in the 1970s. With new, more powerful tractors, for example, sugar beet could be delivered directly to the sugar mill (for the Heinsberg farmers, for example, the sugar mills in Jülich or Ameln). Only a few customers, such as the municipal gas works, a timber yard and the Glanzstoff factory, remained in Oberbruch. The line was served several times a week in freight transport with locomotives of class V90 in 2010. The only freight transport customer to have remained was the Chemiepark ("chemical park") in Oberbruch. Freight transport at the Heinsberg and Dremmen stations was already planned to be closed on 28 May 1994 due to poor profitability. The Oberbruch – Heinsberg section was closed with effect from 24 December 1997. For the operation of the Chemiepark Oberbuch, the locomotive by the Chemiepark hauled freight wagons to Oberbruch station, where they were taken over by a DB locomotive operated by DB Schenker Rail (now DB Cargo). In the spring of 2007, the privately owned Rhein-Sieg-Eisenbahn (RSE) formed a joint venture to operate the Nuon plant of the Chemiepark Oberbuch, which required a train driver of the RSE and a shunter from Nuon to work together in shifts at the Oberbruch site. A diesel locomotive of the RSE was used, rather than a fireless locomotive. The reason for this was that the fireless locomotive of the "Meiningen" class, which had previously been used for shunting, had been taken out of service at a major examination. Under this new collaboration, the Chemiepark Oberbuch hoped for "greater flexibility, contacts with new customers and greater use of rail operations." As a permanent replacement of the rail services, the buses on route 493 of the Regionalverkehr Euregio Maas-Rhein (Regional transport of the Meuse–Rhine Euroregion) ran on different routes between the town of Heinsberg and Lindern station. The districts served were Schafhausen, Eschweiler, Oberbruch, Hülhoven, Dremmen, Porselen, Horst and Randerath. Sale, refurbishment of the infrastructure and the restoration of rail services Large parts of the line were renovated in 2005, level crossings were modernised and a new track body was laid with concrete sleepers. The first new reconstruction took place with a view to the upcoming reactivation in February 2010. Hans Joachim