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Kumamoto City Transportation Bureau line2 min read

Kami-Kumamoto Line

上熊本線

The Kami-Kumamoto Line (上熊本線, Kami-Kumamoto-sen) is a 2.9-kilometre tramway route of the Kumamoto City Tram (熊本市電), the streetcar network operated by the Kumamoto City Transportation Bureau in Kumamoto, on the island of Kyūshū.

It runs from Karashimachō stop, in the central ward of the city where it branches off the system's trunk line, to Kami-Kumamoto stop beside Kami-Kumamoto Station in the western ward. The line is laid to 1,435 mm standard gauge as double track throughout and is electrified at 600 V DC overhead, and it has ten stops counting both termini. It passes through comparatively quiet neighbourhoods.

KumamotoNishiChuo2 km
Route of the Kami-Kumamoto Line · Kumamoto · Boundaries: MLIT / GSI / Japan Post

History

The tram network that the line belongs to is municipally run. Its operator, the Kumamoto City Transportation Bureau, grew out of a predecessor, Kumamoto Densha (熊本電車), which was founded on 16 November 1921; today the bureau is a local public enterprise of the City of Kumamoto, operating the tram as a public undertaking. For much of its history the bureau also ran the city's municipal buses, but that bus operation was discontinued on 31 March 2015 and transferred to Kumamoto City Bus, leaving the tram as the bureau's core business.

The Kami-Kumamoto Line itself opened in two stages. The first section, from Karashimachō to Daniyamamachi, was placed in service on 20 June 1929, opening the Senbabashi, Shioyamachi, Shinmachi, Shinzaikumachi, Urusanmachi, Shinokeyamachi and Daniyamamachi stops along the way. The route was completed on 24 March 1935 when the section from Daniyamamachi to Kami-Kumamoto-Ekimae opened, adding the Shimazakimachi, Sugidomo, Honmyōji-mae and Kami-Kumamoto-Ekimae stops. The stretch from Daniyamamachi to Kami-Kumamoto was built along a road that was specifically cut and graded to carry the streetcar, and the area developed around the tramway; the Senbabashi–Shinmachi section is the line's only piece of reserved (dedicated) track.

The line's stops were repeatedly reorganised in its early decades. On 28 August 1936 the Kami-Kumamoto Line platform at Karashimachō was split off as a separate stop, Nishi-Karashimachō. On 28 December 1943 the Senbabashi, Shinzaikumachi, Shinokeyamachi, Shimazakimachi and Sugidomo stops were all closed, although Sugidomo was later reopened. In May 1948 the Shioyamachi and Urusanmachi-Gokokujinja-mae stops (the latter afterwards renamed Urusanmachi) opened, the original first-generation stops of those names having already been removed by then.

A newer stop and several renamings followed in the postwar and modern eras. Kenritsu-Taiikukan-mae stop opened on 20 January 1983. On 1 March 2011 the Honmyōji-mae stop was renamed Honmyōji-iriguchi, and on 1 October 2019 the Kami-Kumamoto-Ekimae terminus was renamed simply Kami-Kumamoto. Between January and March 2024 the stops on the Daniyamamachi–Kami-Kumamoto section had their platforms lengthened and shelters installed, with work at Sugidomo limited to the shelter.

Today the Kami-Kumamoto Line is served as Route B of the Kumamoto City Tram, running through between Kengun-machi, at the eastern end of the system, and Kami-Kumamoto at intervals of roughly seven to fifteen minutes. The Kumamoto City Transportation Bureau's car depot stands immediately beside the Kami-Kumamoto stop and doubles as the bureau's Kami-Kumamoto operations office. Alongside the regular through service, the line also carries depot in-and-out workings.

Stations on this line

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

Timeline
  • 192116 November: Kumamoto Densha (熊本電車), predecessor of the Kumamoto City Transportation Bureau that would later operate the line, is founded.
  • 192920 June: the first section, Karashimachō–Daniyamamachi, opens, with the Senbabashi, Shioyamachi, Shinmachi, Shinzaikumachi, Urusanmachi, Shinokeyamachi and Daniyamamachi stops.
  • 193524 March: the Daniyamamachi–Kami-Kumamoto-Ekimae section opens, completing the line; the Shimazakimachi, Sugidomo, Honmyōji-mae and Kami-Kumamoto-Ekimae stops open.
  • 193628 August: the Kami-Kumamoto Line platform at Karashimachō is split off as a separate stop, Nishi-Karashimachō.
  • 194328 December: the Senbabashi, Shinzaikumachi, Shinokeyamachi, Shimazakimachi and Sugidomo stops are closed (Sugidomo later reopened).
  • 1948May: the Shioyamachi and Urusanmachi-Gokokujinja-mae stops (the latter later renamed Urusanmachi) open; the original first-generation stops of those names had already been removed.
  • 198320 January: Kenritsu-Taiikukan-mae stop opens.
  • 20111 March: the Honmyōji-mae stop is renamed Honmyōji-iriguchi.
  • 201531 March: the Kumamoto City Transportation Bureau's municipal bus operation is discontinued and transferred to Kumamoto City Bus, leaving the tram as the bureau's core business.
  • 20191 October: the Kami-Kumamoto-Ekimae terminus is renamed Kami-Kumamoto.
  • 2024January–March: the stops on the Daniyamamachi–Kami-Kumamoto section have their platforms lengthened and shelters installed (work at Sugidomo limited to the shelter).

Sources

Last updated 16 October 2026.

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