Shinonoi Line
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The Shinonoi Line(篠ノ井線, Shinonoi-sen) is a railway line in Nagano Prefecture, Japan, operated by the East Japan Railway Company (JR East). It connects Shinonoi Station in Nagano with Shiojiri Station in Shiojiri.
The line is a corridor between the Shinetsu Main Line and the Chūō Main Line. All the limited express trains on the Shinonoi Line come from the Chūō Main Line: Azusa from Tokyo and Shinano from Nagoya.
Stations
All stations are located in Nagano Prefecture.
●: All trains stop, ▲: Some trains stop, ｜: non-stop, Rapid Misuzu stops at all stations
| Line name | No. | Station | Japanese | Distance (km) | Rapid | Transfers | Location |
|---|---|---|---|---|---|---|---|
| Shinonoi Line | SN01 | Shiojiri | 塩尻 | 0.0 | ● | Chūō Main Line Chūō Main Line | Shiojiri |
| SN02 | Hirooka | 広丘 | 3.8 | ● | |||
| SN03 | Murai | 村井 | 6.8 | ● | Matsumoto | ||
| SN04 | Hirata | 平田 | 8.8 | ● | |||
| SN05 | Minami-Matsumoto | 南松本 | 10.9 | ● | |||
| SN06 | Matsumoto | 松本 | 13.3 | ● | ■ Ōito Line Alpico Kōtsū Kamikōchi Line | ||
| SN07 | Tazawa | 田沢 | 21.6 | ● | Azumino | ||
| SN08 | Akashina | 明科 | 28.2 | ● | |||
| SN09 | Nishijō | 西条 | 37.2 | ▲ | Chikuhoku, Higashichikuma District | ||
| SN10 | Sakakita | 坂北 | 40.9 | ▲ | |||
| SN11 | Hijiri-Kōgen | 聖高原 | 45.0 | ● | Omi, Higashichikuma District | ||
| SN12 | Kamuriki | 冠着 | 48.3 | ▲ | Chikuhoku, Higashichikuma District | ||
| SN13 | Obasute | 姨捨 | 54.2 | ▲ | Chikuma | ||
| SN14 | Inariyama | 稲荷山 | 62.9 | ▲ | Nagano | ||
| SN15 | Shinonoi | 篠ノ井 | 66.7 | ● | Shinano Railway Line | ||
| Shin'etsu Main Line | SE09 | ||||||
| SE10 | Imai | 今井 | 68.8 | ｜ | |||
| SE11 | Kawanakajima | 川中島 | 71.0 | ▲ | |||
| SE12 | Amori | 安茂里 | 73.1 | ｜ | |||
| SE13 | Nagano | 長野 | 76.0 | ● | Hokuriku Shinkansen Shinano Railway Kita-Shinano Line ■ Iiyama Line Nagano Electric Railway |
Passing loops and switchbacks
Hirase loop
A passing loop is located in Azumino, known as Hirase shingōjō(平瀬信号場). It has two tracks.
- Coordinates:36°15′47″N 137°56′54″E/36.263133°N 137.948305°E/ 36.263133; 137.948305
Haneo switchback
A switchback is located in Azumino, known as Haneo shingōjō(羽尾信号場)
- Coordinates: 36°29′08″N 138°05′55″E/36.485612°N 138.09856°E/ 36.485612; 138.09856
Kuwanohara switchback
A switchback is located in Azumino, known as Kuwanohara shingōjō(桑ノ原信号場)
- Coordinates: 36°31′20″N 138°04′40″E/36.522274°N 138.077726°E/ 36.522274; 138.077726
- Hirase loop (A: to Matsumoto, B: to Tazawa)
- Haneo switchback (A: to Kamuriki (uphill), B: to Obasute)
- Kuwanohara switchback (A: to Obasute (uphill), B: to Inariyama)
Rolling stock
Limited express
- E353 series EMU (Azusa, Kaiji)
- 383 series EMU (Wide View Shinano)
Local
- E127 series EMU
- 211 series EMU
- 313 series EMU
Former rolling stock
- 115 series EMU
- 123 series EMU
- 381 series EMU (Shinano)
- E257 series EMU (Azusa, Kaiji)
- E351 series EMU (Super Azusa)
History
The Shinonoi to Nishijo section opened in 1900, and was extended via Matsumoto to Shiojiri in 1902.[citation needed]
The Shiojiri to Matsumoto section was double-tracked between 1961 and 1965, with the Tazawa to Akashina section double-tracked in 1966. The Akashina to Nishijo section was also double-tracked, but the original line was decommissioned in 1988.[citation needed]
The Shiojiri to Matsumoto section was electrified in 1964/5, and extended to Shinonoi in 1973, CTC signalling being commissioned on the entire line the previous year.[citation needed]
Station numbering was introduced on the Nagano area from February 2025, with Shinonoi Line stations numbered using the prefix "SN". Numbers increase towards Shinonoi.
Former connecting lines
- Matsumoto Station: The Chikuma Electric Railway opened a 5 km line, electrified at 600 V DC, to Asama Onsen in 1924. In 1958 the voltage was raised to 750 V DC, but the line closed in 1964.[citation needed]