The Nippō Main Line(日豊本線, Nippō-honsen) is a railway line in Kyushu, in southern Japan, operated by Kyushu Railway Company (JR Kyushu). The line connects Kokura Station in Kitakyushu, Fukuoka, and Kagoshima Station in Kagoshima via the east coast of Kyushu, passing through the prefectural capitals of Ōita and Miyazaki. A number of Limited Express trains operate along the route, including Limited Express Sonic trains between Hakata and Oita.

Stations

●: Stops

▲: Rapid service connecting to Hitahikosan Line non-stop,

|: Non-stop

Liner services: Sawayaka Liner, Home Liner

NumberingStationDistance (km)RapidLinerTransfersLocation
JF 01Kokura小倉0.0Sanyo ShinkansenKagoshima Main Line Kitakyushu MonorailKokurakita-ku, KitakyushuFukuoka Prefecture
JF 02Nishi Kokura西小倉0.8■ Kagoshima Main Line
JF 03Minami Kokura南小倉3.5
JF 04Jōno城野6.1Hitahikosan LineKokuraminami-ku, Kitakyushu
JF 05Abeyama Kōen安部山公園8.4
JF 06Shimosone下曽根11.6
JF 07Kusami朽網15.0
JF 08Kanda苅田18.6Kanda
JF 09Obase Nishikōdai-mae小波瀬西工大前22.2Kanda Minato Line (freight)
JF 10Yukuhashi行橋25.0Heisei Chikuho Railway Tagawa LineYukuhashi
Minami Yukuhashi南行橋26.8
Shindenbaru新田原30.2
Tsuiki築城33.9Chikujō
Shiida椎田36.9
Buzen Shōe豊前松江41.8Buzen
Unoshima宇島45.2
Mikekado三毛門48.0
Yoshitomi吉富50.0Yoshitomi
Nakatsu中津51.8NakatsuŌita Prefecture
Higashi Nakatsu東中津56.7
Imazu今津60.1
Amatsu天津62.5Usa
Buzen Zenkōji豊前善光寺65.5
Yanagigaura柳ケ浦69.1
Buzen Nagasu豊前長洲71.0
Usa宇佐75.8
Nishi Yashiki西屋敷79.4
Tateishi立石85.2Kitsuki
Naka Yamaga中山香90.4
Kitsuki杵築99.2
Ōga大神103.3Hiji
Hiji日出107.2
Yōkoku暘谷108.4
Bungo Toyooka豊後豊岡111.3
Kamegawa亀川114.9Beppu
Beppu Daigaku別府大学117.0
Beppu別府120.8
Higashi Beppu東別府122.8
Nishi Ōita西大分130.4Ōita
Ōita大分132.9Kyūdai Main LineHōhi Main Line
Maki136.2
Takajō高城138.0
Tsurusaki鶴崎141.0
Ōzai大在144.3
Sakanoichi坂ノ市147.4
Kōzaki幸崎151.8
Sashiu佐志生159.0Usuki
Shitanoe下ノ江161.0
Kumasaki熊崎164.7
Kami Usuki上臼杵167.6
Usuki臼杵169.2
Tsukumi津久見178.9Tsukumi
Hishiro日代184.4
Azamui浅海井188.2Saiki
Kariu狩生192.0
Kaizaki海崎194.8
Saiki佐伯197.8
Kamioka上岡202.4
Naomi直見208.8
Naokawa直川213.6
Shigeoka重岡224.2
Sōtarō宗太郎231.0
Ichitana市棚238.5NobeokaMiyazaki Prefecture
Kitagawa北川243.2
Hyūga Nagai日向長井246.7
Kita Nobeoka北延岡251.3
Nobeoka延岡256.2
Minami Nobeoka南延岡259.6
Asahigaoka旭ケ丘263.1
Totoro土々呂265.7
Kadogawa門川270.0Kadogawa
Hyūgashi日向市276.6Hyūga
Zaikōji財光寺278.9
Minami Hyūga南日向283.1
Mimitsu美々津289.7
Higashi Tsuno東都農294.1Tsuno
Tsuno都農298.7
Kawaminami川南305.6Kawaminami
Takanabe高鍋313.6Takanabe
Hyūga Shintomi日向新富320.0Shintomi
Sadowara佐土原326.7Miyazaki
Hyūga Sumiyoshi日向住吉330.9
Hasugaike蓮ケ池334.7
Miyazaki Jingū宮崎神宮337.4
Miyazaki宮崎339.9
Minami Miyazaki南宮崎342.5Nichinan Line
Kanō加納345.1
Kiyotake清武347.8
Hyūga Kutsukake日向沓掛352.5
Tano田野358.0
Aoidake青井岳369.3Miyakonojō
Yamanokuchi山之口379.1
Mochibaru餅原382.0Mimata
Mimata三股385.6
Miyakonojō都城389.9Kitto LineMiyakonojō
Nishi Miyakonojō西都城392.4
Isoichi五十市395.2
Takarabe財部399.4SooKagoshima Prefecture
Kitamata北俣403.0
Ōsumi Ōkawara大隅大川原408.1
Kita Naganoda北永野田413.4Kirishima
Kirishima Jingū霧島神宮419.4
Kokubu国分432.1
Hayato隼人434.7Hisatsu Line
Kajiki加治木441.6Aira
Kinkō錦江443.3
Chōsa帖佐445.5
Aira姶良447.1
Shigetomi重富448.7
Ryūgamizu竜ケ水455.7Kagoshima
Sengan-en仙巌園460.5
Kagoshima鹿児島462.6■ Kagoshima Main Line Kagoshima City Tram

Though Kagoshima is the southern terminus for the line, some trains continue via the Kagoshima Main Line to the adjacent Kagoshima-Chūō station.

History

The Kyushu Railway Co. opened the 6 km Kokura - Jono section in 1895, and the Hōshū Railway Co. opened the 46 km Yukuhashi - Buzen Nagasu section in 1897. The former company acquired the latter in 1901, and was nationalised in 1907. The lines were connected in 1909, and extended south to Usa in the same year, the line reaching Beppu and Oita in 1911, Usuki in 1915 and Shigeoka in 1922.

The section from Kagoshima - Hayato opened as part of the Hisatsu line in 1901.

The original rail connection to Miyazaki (via the Kitto Line) opened in 1916, and the line was extended north to Takanabe in 1920, Bibi Tsu in 1921 and connected to the line from Kokura in 1923. The line west of Miyakonojo opened in sections from 1929, connecting to Hayato in 1932.

The 2.8 km Obase - Yukuhashi section was the first to be duplicated in 1956, and the Kokura - Jono section was double-tracked by 1958, continued to Obase by 1965 and extended south to Tateishi by 1983. The Naka Yamaga - Kisuki section was double-tracked between 1977 and 1978, and the Hiji - Oita section between 1966 and 1987.

The 152 km Kokura - Saizaki section was electrified in 1967, extended 191 km to Minami Miyazaki in 1974, and a further 120 km to Kagoshima in 1979.

Former connecting lines

The Beppu Daigaku - Sumiyoshi Shrine 'human' powered line, appears to be ~915mm (~3') gauge

A 3 km 'Kokura Bypass' line (junctioning 2 km north of Kokura on the Kagoshima Main Line) to the Nippo Main Line was opened in 1903, together with another line linking back to the Kagoshima Main Line south of Kokura. The 'Bypass' was built due to the Japanese army expressing concern at the vulnerability of Kokura to enemy naval gunfire. However, following Japan's success in the 1904 Russo-Japanese War, this concern diminished and the Kokura Bypass sections closed in 1911.

  • Jono station - The 4 km Nishitetsu Northern Line was built as a 1,067 mm (3 ft 6.0 in) gauge line to Kawaraguchi between 1906/07. It was regauged to 1435mm and electrified at 600 VDC in 1920, and extended from Kawaraguchi to Uomachi (on the Kagoshima Main Line) in 1932. The line closed in 1980.
  • Unoshima station - The Yabakei Railway Co. opened the 762 mm (2 ft 6.0 in) gauge 17 km line to Yabakei in sections between 1914 and 1918 and was replaced by a bus service in 1936.
Yabakei Railway train at Nakatsu, ~1975
Tablet exchange on the Yabakei Railway, ~1975
  • Nakatsu station - The Yabakei Railway Co. also opened the 36 km 762mm gauge line to Morizane Onsen in sections between 1913 and 1924. The line was regauged to 1067mm in 1929. In 1944 the line commenced servicing the Nakatsu Steel works, until it closed in 1966. The 26 km section beyond Noji closed in 1971, with the remainder closing in 1975.
  • Buzen Zenkoji station - The 16 km 762mm gauge line to Buzen Futsukaichi opened in 1914/15, and closed in 1951 as a result of bridge damage caused by Typhoon Ruth.
  • Usa station - The 9 km line from Bungotakada to Usa Hachiman, including a connection to and overpass of the Nippo Main line at Usa, opened in 1916, closing in 1965.
  • Kitsuki station - The 30 km line to Kunisaki line was opened in sections between 1922 and 1935. A planned extension to Bungotakada was not built. Typhoon damage to bridges in 1961 saw the line formally closed in 1965.
  • Beppu Daigaku station - the Miyazaki Prefectural government built a human powered 1.7 km line of unknown gauge to the Sumiyoshi shrine in 1914. It closed in 1929.
  • Nishi Oita station - The 2 km freight line to Oita Minato operated 1911–1984.
  • Saizaki station - The Nippon Mining Co. opened a 9 km 762mm gauge line to Nikko Saganoseki in 1946. Passenger services commenced in 1948, freight service ceased in 1960 and the line closed in 1963.
Segawa bridge on the Takachiho line
Kuzuhara tunnel at Takachiho on the uncompleted line to Takamori
Kuzuhara tunnel now being used as a sake storage area
  • Nobeoka station - The 50 km line to Takachiho was opened to Hinokage (38 km) between 1935 and 1939, and to Takachiho in 1972. Construction of the 27 km section to the Takamori line continued until 1977, when flooding 2050m into the 6500m Takamori tunnel (16 km north of Takachiho) resulted in work being suspended. Construction was formally abandoned in 1980, after 30% of the line had been constructed. Freight service ceased in 1974, and in 1982 all service was suspended for four months due to Typhoon damage. In 1989 the line was transferred to the Third Sector Takachiho Railway, which operated until the line was extensively damaged by a typhoon in 2005, formal closure occurring in 2008.
  • Hyuga station - The 3.5 km line to Hoso-to Port opened in 1921. Passenger services ceased in 1972 and the line closed in 1993.
  • Sadowara station - The 19 km line to Hokita opened in 1922. Freight services ceased in 1972 and the line closed in 1984.
  • Nishi Miyakonojo station - The 39 km line to Shibushi opened between 1923 and 1925, connecting to the Nichinan Line. Freight service ended in 1983 and the line closed in 1987.
  • Kokubo station - The 98 km line to Shibushi, also connecting to the Nichinan Line, was not completed until 1972. The first section was opened by the Osumi Light Railway Co. as a 762mm gauge line from Funama to Kushira, via a reversing station at Kanoya, between 1915 and 1923. The line was nationalised in 1935, the same year the Shibushi - Higashikushira line was opened by JR. The 1 km connection to Kushira opened the following year, and in 1938 the Kushira - Funama section was regauged, with a new station at Kanoya removing the need to reverse direction there. The Funama - Kaigata section opened in 1961 as a passenger only line, and the Kaigata - Kokubu section also opened without freight service. The rest of the line lost freight service in 1982, and the entire line closed in 1987.

Accidents

On September 17, 2006, at 14:05, the Nichirin Number 9 train on the Nippo Line derailed near Minami-Nobeoka Station, causing some injuries.[citation needed]