# Seto-Ōhashi Line

The Seto-Ōhashi Line (瀬戸大橋線, Seto-Ōhashi-sen) is a railway line operated by West Japan Railway Company (JR West) and Shikoku Railway Company (JR Shikoku) in Japan which links Okayama Station in Okayama Prefecture with Takamatsu Station in Kagawa Prefecture via the Great Seto Bridge. It is not a distinct railway line, but an official nickname given to a composite line formed of three different lines. Service commenced along with the opening of the Great Seto Bridge in 1988.

## Basic data

* Operators, lines:
** Total distance: 71.8 km
** JR West (Services and tracks)
*** Uno Line $^1$: Okayama — Chayamachi, 14.9 km
*** Honshi-Bisan Line: Chayamachi — Kojima, 12.9 km
** JR Shikoku (Services and tracks)
*** Honshi-Bisan Line: Kojima — Utazu, 18.1 km
*** Yosan Line $^1$: Utazu — Sakaide — Takamatsu 25.9 km
** JR Freight (Services)
*** Uno Line $^1$: Okayama — Chayamachi, 14.9 km
*** Honshi-Bisan Line: Chayamachi — Kojima — Utazu, 31.0 km
*** Yosan Line $^1$: Utazu — Sakaide — Takamatsu 25.9 km
    $^1$: Only the portions of these lines are called Seto-Ōhashi Line.
* Gauge: 1,067 mm (3 ft 6 in)
* Stations: 22
* Track:
** Double: Chayamachi — Takamatsu
** Single: the remainder
* Electrification: 1,500 V DC
* Railway signalling: Automatic

## Services

As a link between Honshu and Shikoku, the line has many limited express trains, including the Shiokaze, Nanpū, Uzushio, and Sunrise Seto. There are also rapid trains such as the Sun Port and Marine Liner.
The segment operated by JR West (Okayama — Kojima) accepts ICOCA, a smart card ticketing system.

## Stations

    SK: Shiokaze
    NP: Nampū
    US: Uzushio
    SS: Sunrise Seto
    ML: Rapid Marine Liner
    SP: Rapid Sun Port
All trains stop at stations marked "●" and pass stations marked "-". Some trains stop at "▲" and few trains stop at △.
| Operator | Line | Station | Station | Station | Distance (km) | SK | NP | US | SS | ML | SP | Transfers | Location | Location |
| JR West | Uno Line | M01 | Okayama | 岡山 | 0.0 | ● | ● | ● | ● | ● | | Sanyō Shinkansen Sanyō Main Line Tsuyama Line Kibi Line (Momotaro Line) Okaden: ■ Higashiyama Line ■ Seikibashi Line (Both at Okayama-Ekimae) | Kita-ku, Okayama | Okayama |
| JR West | Uno Line | M02 | Ōmoto | 大元 | 2.5 | - | - | - | - | △ | | | Kita-ku, Okayama | Okayama |
| JR West | Uno Line | M03 | Bizen-Nishiichi | 備前西市 | 4.5 | - | - | - | - | △ | | | Minami-ku, Okayama | Okayama |
| JR West | Uno Line | M04 | Senoo | 妹尾 | 8.3 | - | - | - | - | ▲ | | | Minami-ku, Okayama | Okayama |
| JR West | Uno Line | M05 | Bitchū-Mishima | 備中箕島 | 10.2 | - | - | - | - | - | | | Minami-ku, Okayama | Okayama |
| JR West | Uno Line | M06 | Hayashima | 早島 | 11.9 | - | - | - | - | ▲ | | | Hayashima | Okayama |
| JR West | Uno Line | M07 | Kuguhara | 久々原 | 13.2 | - | - | - | - | - | | | Hayashima | Okayama |
| JR West | Uno Line | M08 | Chayamachi | 茶屋町 | 14.9 | - | - | - | - | ● | | Uno Line (L08, Southward) | Kurashiki | Okayama |
| JR West | Honshi-Bisan Line | M08 | Chayamachi | 茶屋町 | 14.9 | - | - | - | - | ● | | Uno Line (L08, Southward) | Kurashiki | Okayama |
| JR West | Honshi-Bisan Line | M09 | Uematsu | 植松 | 17.8 | - | - | - | - | △ | | | Minami-ku, Okayama | Okayama |
| JR West | Honshi-Bisan Line | M10 | Kimi | 木見 | 20.5 | - | - | - | - | △ | | | Kurashiki | Okayama |
| JR West | Honshi-Bisan Line | M11 | Kaminochō | 上の町 | 24.6 | - | - | - | - | △ | | | Kurashiki | Okayama |
| JR West | Honshi-Bisan Line | M12 | Kojima | 児島 | 27.8 | ● | ● | ● | ● | ● | | | Kurashiki | Okayama |
| JR Shikoku | Honshi-Bisan Line | M12 | Kojima | 児島 | 27.8 | ● | ● | ● | ● | ● | | | Kurashiki | Okayama |
| (Great Seto Bridge) |||||||||||||
| JR Shikoku | Honshi-Bisan Line | Y09 | Utazu | 宇多津 | 45.9 | ● | ● | ● | | | ● | ■ Yosan Line (Westward) | Utazu | Kagawa |
| JR Shikoku | Yosan Line | Y09 | Utazu | 宇多津 | 45.9 | ● | ● | ● | | | ● | ■ Yosan Line (Westward) | Utazu | Kagawa |
| JR Shikoku | Yosan Line | Y08 | Sakaide | 坂出 | 50.5 | | | - | ● | ● | ● | | Sakaide | Kagawa |
| JR Shikoku | Yosan Line | Y07 | Yasoba | 八十場 | 53.2 | | | - | - | - | - | | Sakaide | Kagawa |
| JR Shikoku | Yosan Line | Y06 | Kamogawa | 鴨川 | 55.2 | | | - | - | △ | △ | | Sakaide | Kagawa |
| JR Shikoku | Yosan Line | Y05 | Sanuki-Fuchū | 讃岐府中 | 57.6 | | | - | - | - | - | | Sakaide | Kagawa |
| JR Shikoku | Yosan Line | Y04 | Kokubu | 国分 | 59.9 | | | - | - | △ | △ | | Takamatsu | Kagawa |
| JR Shikoku | Yosan Line | Y03 | Hashioka | 端岡 | 62.3 | | | - | - | △ | ● | | Takamatsu | Kagawa |
| JR Shikoku | Yosan Line | Y02 | Kinashi | 鬼無 | 65.7 | | | - | - | △ | △ | | Takamatsu | Kagawa |
| JR Shikoku | Yosan Line | | Takamatsu Freight Terminal | 高松貨物ターミナル | 67.1 | | | - | - | - | - | | Takamatsu | Kagawa |
| JR Shikoku | Yosan Line | Y01 | Kōzai | 香西 | 68.4 | | | - | - | - | - | | Takamatsu | Kagawa |
| JR Shikoku | Yosan Line | Y00 | Takamatsu | 高松 | 71.8 | | | ● | ● | ● | ● | ■ Kōtoku Line (T28) Kotoden Kotohira Line (Takamatsu-Chikkō) | Takamatsu | Kagawa |