Iwashima Station
Lines. Iwashima Station is a station on the Agatsuma Line, and is located 30.5 kilometres from the terminus of the line at Shibukawa Station. Station layout. Then station consists two opposed side platforms connected by a footbridge. The station is unattended. History. Iwashima Station was opened on 5 August 1945 for freight only. Passenger services began from 20 November 1945. The station was absorbed into the JR East network upon the privatization of the Japanese National Railways (JNR) on 1 April 1987.