Suburban
Railway
09-03-1979: Hokuso Line
> Shin-Kamagaya - Komuro (+7.1 km)
19-03-1984: Hokuso Line > Komuro - Chiba New Town Chuo
(+4.0 km)
31-03-1991: Hokuso Line > Shin-Kamagaya - Keisei-Takasago
(+12.7 km)
01-04-1995: Hokuso Line > Chiba New Town Chuo - Inzai-Makinohara
(+4.7 km)
22-07-2000: Hokuso Line > Inzai-Makinohara - Inba-Nihon-Idai
(+3.8 km)
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