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Joetsu Line

上越線

The Jōetsu Line is a major conventional railway owned and operated by the East Japan Railway Company (JR East). It connects Takasaki Station in Takasaki, Gunma Prefecture, with Miyauchi Station in Nagaoka, Niigata Prefecture, running 162.6 kilometres and linking the north-western Kantō region with the Sea of Japan coast of the Chūbu region.

From Takasaki the line follows the Tone River north through Gunma, crosses the Mikuni Mountains to enter Niigata, and then runs along the Uono and Shinano rivers through the Muikamachi basin to reach Nagaoka; at the Miyauchi terminus it joins the Shin'etsu Main Line, and trains run through to Nagaoka and Niigata. The name combines the old provinces of Kōzuke (上野, now Gunma) and Echigo (越後, now mainland Niigata), and is unrelated to the city of Jōetsu or the surrounding Jōetsu region of Niigata.

Route of the Joetsu Line · Gunma · Niigata · Borders: MLIT
JR East 211 series running through the Minakami valley in Gunma Prefecture on the Joetsu Line in autumn.
JR East 211 series running through the Minakami valley in Gunma Prefecture on the Joetsu Line in autumn. · MaedaAkihiko · CC BY-SA 4.0 · Wikimedia Commons

History

The corridor was built because the pre-existing rail routes between Kantō and Niigata were both indirect: the Takasaki Line / Shin'etsu Main Line route and the Tōhoku Main Line / Ban'etsu West Line route. The Ban'etsu West Line, the first railway between Niigata and the east coast of Honshū, was completed in 1914. It was later decided to build the Jōetsu Line as a more direct route between Tokyo and Niigata, crossing the provincial border beneath Mount Shigura via the Shimizu Tunnel. The deeper history of the corridor reaches back to the Meiji era: in 1884 Nippon Railway opened its Takasaki–Maebashi line, whose Takasaki–Shin-Maebashi stretch is now part of the Jōetsu Line, and the company was nationalised in 1906.

The new line was built from both ends as two projects. The Jōetsu North Line opened Miyauchi to Higashi-Ojiya on 1 November 1920 and was extended in stages, reaching Echigo-Yuzawa on 1 November 1925. The Jōetsu South Line opened Shin-Maebashi to Shibukawa on 1 July 1921 and reached Minakami on 30 October 1928. The two halves were joined on 1 September 1931, when the Minakami–Echigo-Yuzawa section opened with the completion of the 9,702-metre Shimizu Tunnel; on that day the South Line absorbed the North Line, the combined route was renamed the Jōetsu Line, and the official origin was changed to Takasaki. The construction included two spiral sections within the tunnels. The new line shortened the Ueno–Niigata route by 98 km and cut the express journey from 11 hours 6 minutes via the Shin'etsu route to 7 hours 10 minutes, a saving of four hours.

Electrification and double-tracking followed over the next decades. The line had opened throughout in 1931 with a section ending at Ishiuchi already electrified at 1,500 V DC; the Minakami–Ishiuchi section had been built with a maximum gradient of 20 per mille. In 1947 the Takasaki–Minakami section (1 April) and the Ishiuchi–Miyauchi section (1 October) were electrified, making the Jōetsu Line one of the first non-urban Japanese National Railways lines to be completely electrified. The Takasaki–Shin-Maebashi section was double-tracked in 1957, and the remainder in stages during the 1960s; the final section involved the Shin-Shimizu Tunnel, about 13.5 kilometres long, which opened on 28 September 1967 to double-track the Yubiso–Tsuchitaru stretch. A lasting trace of that work is that northbound (Miyauchi-bound) passengers at Yubiso and Doai stations board from platforms situated underground inside the Shin-Shimizu Tunnel.

The Shimizu Tunnel on the Joetsu Line. View full size (opens in a new tab)
The Shimizu Tunnel on the Joetsu Line.Nihongarden · CC BY-SA 3.0 · Wikimedia Commons

The line's role was transformed by the opening of the Jōetsu Shinkansen (Ōmiya–Niigata) on 15 November 1982. Before then the Jōetsu Line carried frequent express services between Tokyo and Niigata; afterwards the high-speed line took over intercity passenger traffic and the conventional line became dominated by local and freight trains. It nonetheless remains an important freight trunk line linking the Tokyo metropolitan area with Niigata, Hokuriku, Shōnai and Akita, and when the Tōhoku Main Line is severed it forms part of the only all-JR detour route for long-distance and freight trains. On 1 April 1987, with the privatisation of Japanese National Railways, the entire line passed to JR East, with Japan Freight Railway (JR Freight) as the Type-2 operator. A short branch from Echigo-Yuzawa to Gala-Yuzawa — built using a maintenance-base access track of the Jōetsu Shinkansen and legally treated as part of the conventional Jōetsu Line — opened on 20 December 1990.

The Jōetsu Line has been hit by several major natural disruptions. The 2004 Chūetsu earthquake (23 October 2004) seriously damaged the line, closing the Minakami–Miyauchi section. Services later resumed with single-track working and speed restrictions; the second track reopened, still under speed restrictions, five months after the earthquake, and full service was restored in 2005. In late July 2011, torrential rainfall closed the Echigo-Yuzawa–Muikamachi section for two weeks. The main line is electrified throughout at 1,500 V DC and double-tracked, with a maximum speed of 120 km/h for limited-express trains.

Stations on this line

36 stations tracked on the map, listed alphabetically. Select any to read its page.

Timeline
  • 188420 August: Nippon Railway opens the Takasaki–Maebashi section; its Takasaki–Shin-Maebashi stretch later forms the southern end of the Jōetsu Line.
  • 19061 November: Nippon Railway is nationalised.
  • 1914The Ban'etsu West Line, the first railway between Niigata and the east coast of Honshū, is completed.
  • 19201 November: the Jōetsu North Line opens Miyauchi to Higashi-Ojiya.
  • 19211 July: the Jōetsu South Line opens Shin-Maebashi to Shibukawa.
  • 19251 November: the Jōetsu North Line reaches Echigo-Yuzawa (Shiozawa–Echigo-Yuzawa opens).
  • 192830 October: the Jōetsu South Line reaches Minakami (Gokan–Minakami opens).
  • 19311 September: the 9,702 m Shimizu Tunnel is completed and the Minakami–Echigo-Yuzawa section opens, joining the line into a through route. The South Line absorbs the North Line and is renamed the Jōetsu Line, with the origin changed to Takasaki; a section ending at Ishiuchi is electrified at 1,500 V DC. The Ueno–Niigata express time falls from 11h06m to 7h10m.
  • 1947Takasaki–Minakami (1 April) and Ishiuchi–Miyauchi (1 October) are electrified, completing electrification of the line — one of the first non-urban JNR lines to be fully electrified.
  • 1957The Takasaki–Shin-Maebashi section is double-tracked.
  • 196728 September: the Shin-Shimizu Tunnel, about 13.5 km long, opens and the Yubiso–Tsuchitaru section is double-tracked, completing the double-tracking of the line that had proceeded in stages through the 1960s.
  • 198215 November: the Jōetsu Shinkansen (Ōmiya–Niigata) opens; intercity passenger traffic shifts to the high-speed line and the conventional Jōetsu Line becomes dominated by local and freight trains.
  • 19871 April: with the privatisation of Japanese National Railways, the whole line passes to JR East; Japan Freight Railway (JR Freight) becomes the Type-2 operator.
  • 199020 December: the Echigo-Yuzawa–Gala-Yuzawa branch opens; built on a Shinkansen maintenance-base track, it is legally part of the conventional Jōetsu Line.
  • 200423 October: the Chūetsu earthquake seriously damages the line, closing the Minakami–Miyauchi section; service later resumes with single-track working and speed restrictions, and full service is restored in 2005.
  • 2011Late July: torrential rainfall closes the Echigo-Yuzawa–Muikamachi section for two weeks.

Sources

Last updated 16 October 2026.

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