Rumoi Main Line
| Rumoi Main Line | |||
|---|---|---|---|
A single KiHa 54 series DMU at Ishikari-Numata Station, the western terminus of the line, in October 2025 | |||
| Overview | |||
| Status | In operation | ||
| Owner | JR Hokkaido | ||
| Locale | JR Hokkaido | ||
| Termini | |||
| Stations | 5 | ||
| Service | |||
| Type | Regional rail | ||
| Operator(s) | JR Hokkaido | ||
| Rolling stock | KiHa 54 series DMU, KiHa 150 series DMU | ||
| History | |||
| Opened | 23 October 1910 | ||
| Closed | 5 December 2016 (Rumoi–Mashike) 1 April 2023 (Ishikari-Numata–Rumoi) 1 April 2026 (entire line) (planned) | ||
| Technical | |||
| Line length | 14.4 km (8.9 mi) | ||
| Number of tracks | Entire line single tracked | ||
| Character | Rural | ||
| Track gauge | 1,067 mm (3 ft 6 in) | ||
| Electrification | None | ||
| Operating speed | 95 km/h (59 mph) | ||
| |||
The Rumoi Main Line (留萌本線, Rumoi-honsen) is a Japanese railway line in Hokkaido operated by Hokkaido Railway Company (JR Hokkaido) which connects Fukagawa Station in Fukagawa and Ishikari-Numata Station in Numata. Following the discontinuation of service between Rumoi and Ishikari-Numata on 1 April 2023, the Rumoi Main Line is the shortest railway line in Japan to be classified as a 'main line', at just 14.4 kilometers (8.9 mi).
On 19 November 2016, JR Hokkaido's president announced plans to further rationalize the network by up to 1,237 km (769 mi), or approximately 50% of the network, including closure of the remaining section of the Rumoi Main Line (the Rumoi to Mashike section closed on 5 December 2016). This section of track from Ishikari-Numata to Rumoi was closed on 1 April 2023, with the final train running on 31 March 2023. JR Hokkaido has announced the Fukagawa-Ishikari Numata section will close on 1 April 2026, and the final train will run on 31 March 2026.