It became an important freight station on the line; one of the notable types of cargo transported included milk that was bound for Saint Petersburg.

[4][3] During the Finnish Civil War, upon the landing of Detachment Brandenstein in Loviisa, it proceeded towards Uusikylä and took control of the station, destroying a section of the railway in the process and thus cutting off the Reds' connection to St. Petersburg.

[3] Over the period of heavy industrialization in Nastola, the Uusikylä station was expanded to accommodate the increased demand for freight transport by local companies.

[6] Uusikylä, along with Villähde, were subsequently rebuilt and reopened on 12 December 2010, which made Nastola home to a total of three active railway stations.

The premises of the station also included a freight warehouse, outhouse, guard's cabin as well as a water tower for maintenance of steam locomotives.