The Hafslund Line opened on 19 March 1898 and ran between Hafslund station on the Østfold Line and the Hafslund quay in Fredrikstad. From Hafslund the branch line followed the south side of Glomma – Norway's longest river. The 5.5-kilometre railway was built to transport raw materials and finished products between Hafslund Carbide Plant and the quay.
*"The Tram"*
The locals often called the trains for "the tram", which also transported the workers. After the opening the private railway had two locomotives and 25 wagons. In 1907 a bigger locomotive and more wagons were purchased. Direct current (600 V) was used to power the electric locomotives, which became the first electric standard gauge railway in Norway.
The Glomma Path
In 1974 a new siding was opened to the plant which replaced the old one. The track between the plant and the quay in Fredrikstad was closed in 1967 and demolished in 2001. The first siding and the corridor east of the quay is today a part of the cultural trail the Glomma Path.
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