Senseki Line

The Senseki Line (仙石線, Senseki-sen) is a railway line in Miyagi Prefecture, Japan, owned and operated by the East Japan Railway Company (JR East). It connects Aoba-dōri Station in Sendai to Ishinomaki Station in Ishinomaki, and provides access to the central coast areas of Miyagi Prefecture, significantly the Matsushima area. It connects with the Sendai Subway Nanboku Line at Aoba-dōri Station; the Tōhoku Shinkansen, the Tōhoku Main Line and the Senzan Line at Sendai Station; and the Ishinomaki Line in Ishinomaki. The name Senseki (仙石) comes from the combination of the first kanji of Sendai (仙台) and Ishinomaki (石巻), the two cities that the Senseki Line connects.

Senseki Line
Senseki Line 205-3100 series train at Tagajō Station
Overview
Native name	仙石線
Status	Operating
Owner	JR East
Locale	Miyagi Prefecture
Termini	Aoba-dōri Station Ishinomaki Station
Stations	31
Service
Type	Heavy rail
System	JR East
Operator(s)	JR East, JR Freight
Rolling stock	205 series
History
Opened	June 5, 1925
Technical
Track length	50.2 km (31.2 mi)
Number of tracks	2 (Aoba-dōri — Higashi-Shiogama), 1 (Higashi-Shiogama — Ishinomaki)
Track gauge	1,067 mm (3 ft 6 in)
Electrification	1,500 V DC
Operating speed	95 km/h (59 mph)
Route map

Senseki Line
Senzan Line 0.0 Aoba-dōri Sendai (1) -1952 Tōhoku Shinkansen ←Tōhoku Main Line↓ Sendai (2) 1952–2000 Sendai Tram 1926–76 0.5 Sendai (3) 2000– 1.3 Tsutsujigaoka 2.4 Miyaginohara Rikuzen-Haranomachi Depot 3.2 Rikuzen-Haranomachi Tōhoku Main Line（Miyagino Freight Line） former line -2000 4.0 Nigatake 4.6 Shinden Stop -1944 5.6 Kozurushinden 6.8 Miyagino Signal Sendai Rail Yard Miyagino branch Yard 7.7 Fukudamachi Nanakita River 8.6 Rikuzen-Takasago 10.3 Nakanosakae Sendai Rinkai Railway:Rinkai Main Line 12.6 Tagajō 14.4 Geba Shiogama Line 15.2 Nishi-Shiogama Shiogamakō 16.0 Hon-Shiogama Shiogama Line Higashi-Shiogama (1) -1981 Shiogama Uoichiba 17.2 Higashi-Shiogama(2) 1981– Tōhoku Main Line 20.3 Rikuzen-Hamada Koishihama Amusement Park 23.2 Matsushima-Kaigan Senseki-Tōhoku Line 2015– Matsushima Shin-Tomiyama Stop -1944 Matsushima Densha (1922–44) 25.5 Takagimachi 27.3 Tetaru 28.6 Rikuzen-Tomiyama 30.8 Rikuzen-Ōtsuka former line -2015 32.2 Tōna 33.4 Nobiru Naruse River 36.0 Rikuzen-Ono 37.6 Kazuma 40.2 Yamoto 41.6 Higashi-Yamoto 43.1 Rikuzen-Akai 45.2 Ishinomakiayumino 2.9# Ishinomakifutō 46.6 Hebita 49.7 Ishinomakikō Freight Terminal (2) 47.6 Rikuzen-Yamashita 52.5 Ishinomakikō Freight Terminal (1) -1971 49.0 Ishinomaki Ishinomaki Line

Basic data

• Operators, distances:
  • East Japan Railway Company (Services and tracks)
    • Aoba-dōri — Ishinomaki: 50.2 km / 31.2 mi.
  • Japan Freight Railway Company (Services and tracks)
    • Rikuzen-Yamashita — Ishinomaki-Minato: 1.8 km / 1.1 mi.
  • Japan Freight Railway Company (Services)
    • Rikuzen-Yamashita — Ishinomaki: 1.4 km / 0.9 mi.
• Stations:
  • Passenger stations: 31
  • Freight terminals: 1 (Ishinomaki-Minato)
• Tracks:
  • Double-track: Aoba-dōri — Higashi-Shiogama
  • Single-track: Higashi-Shiogama — Ishinomaki
• Electrification: Whole line (1,500 V DC)
• Railway signalling:
  • Aoba-dōri — Higashi-shiogama:ATACS(≈ETCS Level 3)
  • Higasi-Shiogama —Ishinomaki: ATS-Ps
• CTC center: Miyagino Operation Control Center

Services

"Mangattan Liner" 205 series train, July 2006

"Mangattan Liner II" 205 series train, January 2009

Prior to the partial suspension of services by the 2011 earthquake and tsunami, all trains originated from Aoba-dōri Station, with most running to Tagajō or Higashi-Shiogama. Local trains and rapid service trains that ran the entire length of the line operated at 30-minute intervals. When the line was fully recovered in 2015, rapid services were switched to the route via the Senseki-Tōhoku Line. Therefore, under the 2015 timetable, the section between Aoba-dōri and Takagimachi is served only by local trains.

At Sendai Station, the line crosses under the Tōhoku Main Line and its platforms, similar to the situation with the Keiyō Line in Tokyo and the Chikuhi Line in Hakata (which connects via the Fukuoka Airport Subway Line).

The segment from Aoba-dōri to Higashi-Shiogama is a key part of Sendai's transportation system, and becomes very crowded during peak periods, and headways are as short as 4 minutes. During non-peak times 3–5 trains run per hour. Between Higashi-Shiogama and Ishinomaki two trains run per hour.

In addition to all-stations "local" trains, there are limited-stop "rapid" and "special rapid" services on the Senseki Line section between Takagimachi and Ishinomaki. Between Sendai and Takagimachi, the "rapid" and "special rapid" services operate on the Senseki-Tōhoku Line. The special rapid services make only stop at Yamoto in the Senseki Line section, while the rapid services also stop at Nobiru, Rikuzen-Ono, Rikuzen-Akai, Hebita and Rikuzen-Yamashita.

A "Mangattan Train" operates on the Senseki Line, with a livery featuring Ishinomori Manga characters.

Disaster and reconstruction, 2011–2015

Service was halted since the 2011 Tōhoku earthquake and tsunami, as several trains, stations, and sections of the line were destroyed, heavily damaged, or flooded. Service for the first 16 miles of the line from Sendai was expected to be restored by the end of May 2011.[1] By mid-July, the Sendai – Matsushima-Kaigan and Yamoto – Ishinomaki sections had service restored, although the latter segment was with diesel trains due to the loss of the power substation.[2] The remainder of the line between Matsushima-Kaigan and Yamoto was obliterated by the tsunami.[2]

From March October 2012, services resumed on all but the Takagimachi to Rikuzen-Ono section,[3] with services on that section restored on 30 May 2015, and a new 400m link was constructed from between Shiogama Station and Matsushima Station on the Tohoku Main Line to a point between Matsushima-Kaigan and Takagimachi Station on the Senseki Line. Costing approximately 2 billion yen to build, the new link allows through-running services from the Tohoku Main Line to the Senseki Line, and cut approximately 10 minutes off the journey time between Sendai and Ishinomaki.[4] On 26 March 2016, a new station located between Rikuzen-Akai Station and Hebita Station, called Ishinomakiayumino Station was opened.

Stations

Name	Japanese	Station (km)	Distance (km)	Rapid Service	Special Rapid Service	Transfers	Location
Aoba-dōri	あおば通		0.0	No service		Sendai Subway Namboku Line, Sendai Subway Tōzai Line	Aoba-ku, Sendai
Sendai	仙台	0.5	0.5	●	●	Tohoku Shinkansen, Akita Shinkansen, Tohoku Main Line, Senzan Line, Joban Line, Sendai Subway Namboku Line, Sendai Subway Tōzai Line	Miyagino-ku, Sendai
Tsutsujigaoka	榴ヶ岡	0.8	1.3	Via Senseki-Tōhoku Line
Miyaginohara	宮城野原	1.1	2.4
Rikuzen-Haranomachi	陸前原ノ町	0.8	3.2
Nigatake	苦竹	0.8	4.0
Kozurushinden	小鶴新田	1.6	5.6
Fukudamachi	福田町	2.1	7.7
Rikuzen-Takasago	陸前高砂	0.9	8.6
Nakanosakae	中野栄	1.7	10.3
Tagajō	多賀城	2.3	12.6				Tagajo, Miyagi
Geba	下馬	1.8	14.4
Nishi-Shiogama	西塩釜	0.8	15.2			approx. 1 km from Tohoku Main Line Shiogama Station.	Shiogama, Miyagi
Hon-Shiogama	本塩釜	0.8	16.0
Higashi-Shiogama	東塩釜	1.2	17.2
Rikuzen-Hamada	陸前浜田	3.1	20.3				Rifu, Miyagi
Matsushima-Kaigan	松島海岸	2.9	23.2			approx. 2 km from Tohoku Main Line Matsushima Station.	Matsushima, Miyagi
Takagimachi	高城町	2.3	25.5	●	●	approx. 1 km from Tohoku Main Line Matsushima Station.
Tetaru	手樽	1.8	27.3	|	|
Rikuzen-Tomiyama	陸前富山	1.3	28.6	|	|
Rikuzen-Ōtsuka	陸前大塚	2.2	30.8	|	|		Higashimatsushima, Miyagi
Tōna	東名	1.4	32.2	|	|
Nobiru	野蒜	1.2	33.4	●	|
Rikuzen-Ono	陸前小野	2.6	36.0	●	|
Kazuma	鹿妻	1.6	37.6	|	|
Yamoto	矢本	2.6	40.2	●	●
Higashi-Yamoto	東矢本	1.4	41.6	|	|
Rikuzen-Akai	陸前赤井	1.5	43.1	●	|
Ishinomakiayumino	石巻あゆみ野	2.1	45.2	▲	|		Ishinomaki, Miyagi
Hebita	蛇田	1.4	46.6	●	|
Rikuzen-Yamashita	陸前山下	1.0	47.6	●	|
Ishinomaki	石巻	1.4	49.0	●	●	Ishinomaki Line

The distances shown above are as of May 30, 2015 following the rerouting of the section between Rikuzen-Ōtsuka and Rikuzen-Ono, by which the section was shortened by 1.2 kilometers.[5]

Rolling stock

• 205-3100 series 4-car EMUs
• HB-E210 series 2-car hybrid DMUs

New HB-E210 series 2-car hybrid diesel multiple unit (DMU) trains are scheduled to be introduced on the line from 30 May 2015 between Takagimachi and Ishinomaki following the start of new Senseki-Tohoku Line services using a newly built link connecting with the Tohoku Main Line at Shiogama.[6]

• 
  A 205-3100 series EMU
• 
  An HB-E210 series hybrid DMU

Former Rolling Stock

• 72 series (Since 1974)
• 79 series (Since 1974)
• 103 series (1979-2004, 2006-2009)
• 105 series (March 1987-1998)

• 
  A Senseki Line 103 Series Approaching Hon-Shiogama station

History

The Miyagi Electric Railway opened the line in sections between 1925 and 1928. Individual opening dates are given in the timeline section below. The Rikuzen-Haranomachi to Nishi-Shiogama section was double-tracked between 1968 and 1969, and extended to Higashi-Shiogama in 1981.

In 2000, the surface section between Rikuzen-Haranomachi and Sendai was replaced by a double-track underground line, with a new section to Aoba-dori to connect to the Sendai subway.

Parts of the line were extensively damaged by the 2011 Tohoku earthquake and tsunami, and whilst service was restored on the majority of the line by March 2012, the Takagimachi – Rikuzen-Ono section was returned to service on 30 May 2015.

Timeline

• June 5, 1925: Miyagi Electric Railway (later Senseki Line): Sendai – Nishi-Shiogama.
• January 1, 1926: Miyaginohara Station opens.
• April 14, 1926: Nishi-Shiogama – Hon-Shiogama section opens.
• April 18, 1927: Hon-Shiogama – Matsushima-Kōen (later Matsushima-Kaigan Station) section opens.
• April 10, 1928: Matsushima-Kōen – Rikuzen-Ono section opens.
• May 15, 1928: Nigatake Station opens.
• November 22, 1928: Rikuzen-Ono – Ishinomaki section opens, connecting Sendai to Ishinomaki.
• June 1, 1929: Kazuma Station opens.
• October 23, 1931: Nobiru Station becomes Tōhoku-Suma Station.
• December 1, 1931: Tōna Station opens.
• January 8, 1932: Ishinomaki station becomes Miyaden-Ishinomaki Station.
• August 1, 1932: Geba Station opens.
• February 1, 1939: Miyaden-Yamashita Station (later Rikuzen-Yamashita Station) opens.
• November 7, 1939: Miyaden-Yamashita – Kama (later Ishinomaki Port Station) freight connection opens.
• May 1, 1944: Miyagi Electric Railway is nationalized, becomes the Senseki Line; Higashi-Nanabanchō Station becomes Sendai Higashi-Guchi Station, Hamada Station becomes Rikuzen-Hamada Station, Matsushima-Kōen becomes Matsushima-Kaigan Station, Tomiyama becomes Rikuzen-Tomiyama Station, Ōtsuka becomes Rikuzen-Ōtsuka Station, Tōhoku-Suma becomes Nobiru Station, and Miyaden-Ishinomaki becomes Ishinomaki Station.
• June 1, 1952: Sendai – Sendai Higashi-Guchi section stops operation.
• September 26, 1952: Sendai – Sendai Higashi-Gushi section abolished.
• 1957: Rapid trains begin operation.
• February 23, 1968: Track doubled on Fukudamachi – Tagajō section.
• March 19, 1968: Track doubled on Rikuzen-Haranomachi – Fukudamachi section.
• October 11, 1968: Kama – Ishinomaki-Futō freight connection opens
• September 26, 1969: Track doubled on Tagajō to Nishi-Shiogama section.
• April 1, 1971: Kama – Ishinomaki-Minato freight connection abolished.
• March 15, 1972: Kama Station becomes Ishinomaki-Minato Station.
• 1974: 72 series and 79 series trains begin operation.
• October 1, 1979: 103 series trains begin operation.
• April 1, 1981: Nakanosakae Station opens.
• November 1, 1981: Nishi-Shiogama – Higashi-Shiogama section elevated, double-tracked; Hon-Shiogama Station and Higashi-Shiogama Station moved.
• October 2, 1983: New weekend schedule introduced.
• March 31, 1987: Higashi-Yamoto Station opens.
• April 1, 1987: Senseki Line becomes part of the East Japan Railway Company (JR East).
• March 13, 1988: Rapid trains renamed Umikaze; scheduling changes.
• July 21, 1990: Ishinomaki and Senseki Lines' Ishinomaki stations are merged.
• November 1, 1999: Ishinomaki-Minato – Ishinomaki-Futō; freight connection abolished.

Senseki Line 205 series EMU damaged by tsunami, March 2011

• March 11, 2000: Sendai – Rikuzen-Haranomachi section moved underground; Aoba-dōri – Sendai section added.
• November 5, 2002: 205-3100 series trains begin operation.
• July 2004: Last remaining 103 series trains withdrawn.[7]
• March 13, 2004: Kozurushinden Station opens.
• October 16, 2004: "Umikaze" name is discontinued; weekday and Saturday schedules are merged.
• March 16, 2005: Nishi-Shiogama Station becomes unmanned.
• November 2006: One 4-car 103 series train is brought out of storage and reinstated into service.
• October 21, 2009: JR East's last remaining 103 series train is withdrawn from service.[7]
• March 11, 2011: Two Senseki Line trains were derailed and badly damaged by the 2011 Tōhoku earthquake and tsunami.[8]
• 2015: Services are restored over the entire length of the line.
• 26 March 2016: Ishinomakiayumino Station opens.

References

1. Slavin, Erik, "U.S. troops restore a train station, one dirt pile at a time", Stars and Stripes, 25 April 2011.
2. 津波被害のＪＲ仙石線が部分開通 全線は見通し立たず [Partial reopening of tsunami-hit JR Senseki Line; No timeline for full restoration]. Asahi Shimbun (in Japanese). 16 July 2011. Retrieved 16 July 2011.
3. JR Timetable October 2012 issue, P.9
4. 東北本線と仙石線を接続、直通運転へ [Tohoku Main Line and Senseki Line to be linked with through-running]. Tetsudo.com (in Japanese). Japan: Asahi Interactive Inc. 19 October 2012. Retrieved 22 October 2012.
5. Sendai Branch, East Japan Railway Company (January 29, 2015). "石巻線および仙石線の全線運転再開と仙石東北ライン開業に伴う営業キロの変更及び運賃の適用等について" (PDF) (in Japanese). Archived from the original (PDF) on February 9, 2015. Retrieved July 5, 2015.
6. "JR東日本に新型車両2形式 – E129系とディーゼルハイブリッド車両HB-E210系" [Two new train types for JR East: E129 series and diesel hybrid HB-210 series]. Mynavi News (in Japanese). Japan: Mynavi Corporation. 2 July 2013. Retrieved 3 July 2013.
7. "JR East news release" (PDF) (in Japanese). Tokyo. 2009-10-09. Archived from the original (PDF) on 2011-07-13. Retrieved 2011-03-12.
8. "Japanese Passenger Train Unaccounted for After Powerful Earthquake". Nobiru, Japan: Fox News. 2011-03-11.