The Tōhoku Main Line is a 575.7 km railway line in Japan operated by the East Japan Railway Company (JR East). The line starts from Tokyo Station in Chiyoda, Tokyo and passes through such cities as Saitama, Utsunomiya, Fukushima, and Sendai, before reaching the end of the line in Morioka. The line originally extended to Aomori, but was truncated upon the extension of the Tōhoku Shinkansen beyond Morioka, which mostly parallels the Tōhoku Main Line. A portion of the Tōhoku Main Line is also shared with the Keihin–Tōhoku Line (29.6 km between Tokyo Station and Ōmiya Station in Ōmiya-ku, Saitama) and the Saikyō Line (18 km between Akabane Station in the Kita ward of Tokyo and Ōmiya Station). The 159.9 km portion of the line between Tokyo Station and Kuroiso Station in Nasushiobara, Tochigi is referred to by JR East as the Utsunomiya Line, and the remaining section is referred to as the Tōhoku Line in regular service. Because of the difference in electrification south (1,500 V DC) and north (20 kV AC) of Kuroiso, there are no regularly scheduled passenger services that travel through that station.

Station list

These lists are separated by service patterns provided on the Tōhoku Main Line.

Tokyo – Kuroiso

The section between Tokyo and Kuroiso is known as the Utsunomiya Line.

Kuroiso – Shin-Shirakawa

Shin-Shirakawa – Fukushima

All stations are located in Fukushima Prefecture.

Fukushima – Sendai

Sendai – Ichinoseki

Legends:

Ichinoseki – Morioka

All stations are located in Iwate Prefecture.

Rolling stock

Tokyo – Kuroiso

Previously From March 2013, a fleet of eight refurbished 4-car 205-600 series EMUs was phased in on Utsunomiya Line services between Koganei and Kuroiso, replacing 211 series sets.

Kuroiso – Shin-Shirakawa

Shin-Shirakawa – Ichinoseki

Ichinoseki – Morioka

History

The construction of the Tōhoku Main Line began in the Kantō region and extended to the north end of Honshu, and the city of Aomori. It is one of oldest railway lines in Japan, with construction beginning in the late 19th century. Until 1 November 1906, the current Tōhoku Main Line was run by a private company Nippon Railway. In 1883, the first segment between Ueno and Kumagaya opened. In 1885, it was extended to Utsunomiya, but the Tone River had to be crossed by boat. Following construction of the Tone River Bridge in 1886, Utsunomiya and Ueno were directly connected. The line gradually extended further to the north; to Kōriyama, Sendai, Ichinoseki and Morioka. In 1891, the segment between Morioka and Aomori opened, creating the longest continuous railway line in Japan. After 1906, the line was nationalized and became the Tōhoku Main Line operated by the Ministry of Railways. When Tokyo Station opened in 1925, the Tōhoku Main Line was extended from Ueno to the new station. Until the 1950s, this segment was used and many trains ran through both the Tōkaidō Main Line and Tōhoku Main Line. However, when the Tōhoku Shinkansen opened, it occupied land previously used for the tracks of mid and long-distance Tōhoku Main Line trains. As a result, only a small number of commuter lines such as the Keihin–Tōhoku Line now operate to Tokyo from the north, making Tokyo Station's status as part of the Tōhoku Main Line somewhat circumspect. In 2002, the Tōhoku Shinkansen was extended from Morioka to Hachinohe and the operations of the local track segment between those two cities was turned over to Iwate Ginga Railway (IGR) and Aoimori Railway. With the extension of the Tōhoku Shinkansen to Shin-Aomori station in 2010, the segment between Hachinohe and Aomori was delegated to the Aoimori Railway Company. The shortened Tōhoku Main Line is now the second-longest line in Japan, after the Sanin Main Line. With the opening of the Ueno–Tokyo Line in March 2015, most longer distance trains once again operate directly through to the Tōkaidō Main Line via Tokyo Station, with the exception of some rush hour trains which terminate at Ueno Station.

Double-tracking

The Tokyo to Omiya section was double-tracked between 1892 and 1896, extended to Furukawa in 1908, Koyama the following year, and to Utsunomiya in 1913. The Iwanuma - Sendai - Iwakiri section was double-tracked between 1920 & 1923 and the Utsunomiya - Iwanuma section between 1959 and 1964. The Iwakiri - Morioka - Aomori section was double-tracked between 1951 and 1968, including the 17 km realigned section between Iwakiri and Atago in 1962.

Electrification

The 7 km Tokyo to Tabata section was electrified at 1,500 V DC in 1909, extended to Akabane in 1928, Omiya in 1932 and Kuroiso in 1959. Electrification was then continued north at 20 kV AC, reaching Fukushima in 1960, Sendai in 1961, Morioka in 1965, and Aomori in 1968.

Former connecting lines

Saitama Prefecture

Tochigi Prefecture

Fukushima Prefecture

Miyagi Prefecture

Iwate Prefecture

Aomori Prefecture