Iwanuma Station
Lines. Iwanuma Station is served by the Tōhoku Main Line, and is located 334.2 rail kilometers from the official starting point of the line at . It is also served by the Jōban Line, and is 343.1 rail kilometers from the starting point of that line Nippori Station in Tokyo. Station layout. The station has one side platform and two island platforms connected to the station building by a footbridge. The station has a "Midori no Madoguchi" staffed ticket office. History. Iwanuma Station opened on December 15, 1887, on the Tōhoku Main Line. The Joban Line opened on November  10, 1897. The station was absorbed into the JR East network upon the privatization of the Japanese National Railways (JNR) on April 1, 1987. A new station building was completed in June 1998. Passenger statistics. In fiscal 2018, the station was used by an average of 7,093 passengers daily (boarding passengers only).