{{Short description|Railway line of Tobu Railway}} {{Refimprove|date=May 2017}} {{No footnotes|date=October 2014}} {{Infobox rail line | name = Koizumi Line | native_name = 小泉線 | native_name_lang = ja | color = {{rcr|Tobu|TI}}<!-- Red--> | logo = Tobu Isesaki Line (TI) symbol.svg | image = Tobu Series10000R-11201.jpg | image_width = 300px | caption = A Koizumi Line train approaching Narushima Station in May 2025 | type = Commuter rail | system = Tobu Railway | status = In service | locale = Gunma Prefecture | start = {{STN|Tatebayashi|x}} | end = {{STN|Nishi-Koizumi|x}}/{{STN|Higashi-Koizumi|x}} | stations = 10 total<br>7 (main branch), 3 (Ota branch) | routes = | routenumber = {{color|#{{rcr|Tobu|TI}}|'''TI'''}} | daily_ridership = | open = {{start date and age|12 March 1917}} | close = | owner = Tobu Railway Co., Ltd. | operator = Tobu Railway Co., Ltd. | character = | depot = | stock = | linelength = | tracklength = | tracks = | gauge = {{track gauge|1067mm}} | electrification = 1,500 V DC, overhead catenary | speed = | elevation = | map = | map_state = }} The {{nihongo|'''Koizumi Line'''|小泉線|Koizumi-sen}}, operated by the railway operator Tobu Railway, connects Tatebayashi Station located in Tatebayashi, Gunma to Nishi-Koizumi Station located in Ōizumi, Gunma as well as Higashi-Koizumi Station in Ōizumi town to Ōta Station in Ōta, Gunma Japan and before was blue the train.
== Stations == {| class=wikitable |- !No. ! colspan=2 | Name ! align="center" | Connections ! align="center" colspan=2 | Location |- | style="text-align: left"| {{TBSN|TI|10|size=40}} | {{STN|Tatebayashi|x}} | 館林 | {{Plainlist| * {{ric|Tobu|TI|name=y}} (TI11) * {{ric|Tobu|Sano|name=y}} (TI10) }} | rowspan=2 | Tatebayashi | rowspan=7 | Gunma |- | style="text-align: left"| {{TBSN|TI|41|size=40}} | {{STN|Narushima|x|Gunma}} | 成島 | |- | style="text-align: left"| {{TBSN|TI|42|size=40}} | {{STN|Hon-Nakano|x}} | 本中野 | | rowspan=2 | Ōra |- | style="text-align: left"| {{TBSN|TI|43|size=40}} | {{STN|Shinozuka|x}} | 篠塚 | |- | style="text-align: left"| {{TBSN|TI|44|size=40}} | {{STN|Higashi-Koizumi|x}} | 東小泉 | {{ric|Tobu|Koizumi branch|name=y}} for {{STN|Ōta|x|Gunma}} | rowspan=3 | Ōizumi |- | style="text-align: left"| {{TBSN|TI|45|size=40}} | {{STN|Koizumimachi|x}} | 小泉町 | |- | style="text-align: left"| {{TBSN|TI|46|size=40}} | {{STN|Nishi-Koizumi|x}} | 西小泉 | |- !colspan="5"|The line splits at Higashi-Koizumi. |- | style="text-align: left"| {{TBSN|TI|44|size=40}} | {{STN|Higashi-Koizumi|x}} | 東小泉 | {{ric|Tobu|Koizumi|name=y}} for Tatebayashi/Nishi-Koizumi | rowspan=1 | Ōizumi | rowspan=3 | Gunma |- | style="text-align: left"| {{TBSN|TI|47|size=40}} | {{STN|Ryūmai|x}} | 竜舞 | | rowspan=2 | Ōta |- | style="text-align: left"| {{TBSN|TI|18|size=40}} | {{STN|Ōta|x|Gunma}} | 太田 | {{Plainlist| * {{ric|Tobu|TI|name=y}} (TI18) * {{ric|Tobu|Kiryu|name=y}} (TI18) }} |}
== Abandoned stations == * {{ill|Shin-Koizumi Station|jp|新小泉駅|vertical-align=sup}} - {{ill|Sengokugashi Station|jp|仙石河岸駅|vertical-align=sup}} * Kobugannon Station (between Higashi-Koizumi Station and Shinozuka Station) * Mujinazuka Station (between Narushima Station and Hon-Nakano Station)
== History == The first section of the line from Tatebayashi Station to Koizumimachi Station was opened for passenger service on March 12, 1917, operated by the Chūgen Railway, which was purchased by Tobu Railway company in 1937.{{cn|date=May 2017}}
The 3 km {{nihongo|Sengokugashi Freight Line|仙石河岸貨物線}} from Koizumimachi Station to {{nihongo|Sengokugashi Station|仙石河岸駅}} opened on April 13, 1939, as a freight-only branch line. Passenger services as far as Nishi-Koizumi commenced in 1941.{{cn|date=May 2017}}
In 1941, Higashi-Koizumi Station to Ōta Station section opened on June 1, 1941, to service the Nakajima Aircraft Company Ōta and Koizumi plants. The lines were electrified in 1943.{{cn|date=May 2017}}
The Nishi-Koizumi to Sengoku freight branch closed in 1976, and freight services ceased on the line in 1996.{{cn|date=May 2017}}
==References== This article incorporates material from the corresponding article in the Japanese Wikipedia. * {{cite book| title=Zenkoku Tetsudo Jijo Daikenkyu| isbn=4-7942-1291-7| author=Ryōzō Kawashima| location=Tōkyō| publisher=Sōshisha| year=2004}} * {{cite book| title=Ekisha Sai-hakken| isbn=4-533-03675-9| author=Yukiyasu Sugizaki| location=Tōkyō| publisher=JTB| year=2000}} * {{cite book| title=Tetsudo Haisenato o Aruku| isbn=4-533-02743-1| author=Shunzō Miyawaki| location=Tōkyō| publisher=JTB| year=1997}}
==External links== *[http://www.tobu.co.jp/history/fhistory03.html History of Tobu Railway] {{in lang|ja}}
{{Tobu Koizumi Line}} {{Tobu transit}} {{Tokyo transit}}
{{DEFAULTSORT:Tobu Koizumi Line}} Category:Lines of Tobu Railway Category:Rail transport in Gunma Prefecture Category:Railway lines opened in 1917 Category:1067 mm gauge railways in Japan