Originally the line was 3.37 kilometres (2.09 mi) long, running through today's Teollisuuskatu in Vallila, but in 1965 it was re-routed around the inner city area via Pasila Rail Tunnel and Kumpula.
[2] The track was mainly used by trains going to the harbour, but since 1901 it was branched all the way south to Hakaniemi market square.
[3] Since its closure, the area has been redeveloped for residential, retail and leisure use, as part of the Kalasatama development.
Another branch line, the 7 kilometres (4.3 mi) long Helsinki harbour rail was built in the 1890s.
The track was also dismantled in 2009 as all container traffic was moved to Vuosaari Harbour in 2008.