The Tōhoku Main Line () is a 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 ( between Tokyo Station and Ōmiya Station in Ōmiya-ku, Saitama) and the Saikyō Line ( between Akabane Station in the Kita ward of Tokyo and Ōmiya Station).

The 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.

Tōhoku Main Line

Station list

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

Tōhoku Main Line

Tokyo – Kuroiso

The section between and is known as the Utsunomiya Line.

Tōhoku Main Line

Kuroiso – Shin-Shirakawa

Shin-Shirakawa – Fukushima

Fukushima – Sendai

●: All rapid trains stop

|: All rapid trains pass

Sendai – Kogota

Kogota – Ichinoseki

Ichinoseki – Morioka

A: Aterui

H: Hamayuri

●: All rapid trains stop

|: All rapid trains pass

Rolling stock

Tokyo – Kuroiso

E231-1000 series EMUs

E233-3000 series EMUs

E131-600/-680 series EMUs

Previously

205-600 series EMUs

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

E531-3000 series EMUs

Shin-Shirakawa – Ichinoseki

701 series EMUs

719 series EMUs

E721 series/ SAT721 series EMUs

HB-E210 series DMUs - Senseki-Tōhoku Line

Ichinoseki – Morioka

701 series EMUs

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.