Jōban Expressway

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This article contains information about a planned or expected future road. It may contain information of a speculative nature and the content may change as the road's construction or completion approaches and more information becomes available.

Jōban Expressway (常磐自動車道)
Length:	212.7 km[1]
Formed:	1981[2]
From:	Misato Junction in Misato, Saitama Shuto Expressway Misato Route Tokyo Gaikan Expressway
To:	Tomiya-kita Interchange in Tomiya, Miyagi National Route 4
Major cities:	Kashiwa, Tsukuba, Tsuchiura, Mito, Hitachi, Iwaki, Natori, Sendai

The Jōban Expressway (常磐自動車道, Jōban Jidōsha-dō^?), abbreviated (常磐道, Jōban-dō^?), is a national expressway in Japan. It is owned and operated by East Nippon Expressway Company.

[edit] Naming

Jōban is a kanji acronym consisting of two characters. Each character represents a former province of Japan that is passed through by the route: Hitachi Province (常陸国, Hitachi Province^?) representing present-day Ibaraki Prefecture and Iwaki Province (磐城国, Iwaki Province^?) representing the eastern portion of present-day Fukushima Prefecture

The expressway carries the Jōban Expressway name from the origin at Misato Junction to Watari Interchange. From Watari Interchange to the expected terminus at Tomiya-kita Interchange, the Jōban Expressway name is currently an official designation only.^[3] The section from Watari Interchange to Sendaikō-kita Interchange is the Sendai-Tōbu Road, the section from Sendaikō-kita Interchange to Rifu Junction is the Sanriku Expressway (Senen Road), and the section from Rifu Junction to the terminus is the Sendai-Hokubu Road. It is unknown if the naming of these sections will be changed upon completion of the Jōban Expressway.

[edit] Overview

The expressway is an important route connecting the greater Tokyo area with Mito, the capital of Ibaraki Prefecture. Beyond Mito, the expressway follows a northerly route along the coast of the Pacific Ocean to the city of Iwaki in Fukushima Prefecture. Most of the route beyond Iwaki is incomplete; when completed the expressway will reach the greater Sendai area. The expressway will also supplement the Tōhoku Expressway as an access route between Tokyo and the Tōhoku region.

For most of its length the expressway parallels National Route 6 and the Jōban Line of East Japan Railway Company

The first section of the expressway was opened in 1981. The section from Jōban-Tomioka Interchange to Watari Interchange is under construction,^[4] and extensions and upgrades to the existing Sendai road network are also planned.^[5]

[edit] List of interchanges and features

• IC - interchange, SIC - smart interchange, JCT - junction, SA - service area, PA - parking area, BS - bus stop, TN - tunnel, BR - bridge, TB - toll gate

[edit] Main Route (Misato JCT - Watari IC)

No.	Name	Connections	Dist. from Origin	Dist. from Terminus	Bus Stop	Notes	Speed Limit	Lanes	Location
Through to Shuto Expressway Misato Route
1 (661)	Misato JCT	Tokyo Gaikan Expressway	0.0	218.5			80 km/h	Six	Misato	Saitama
TN	Misato Tunnel		↓	↑
TB	Misato Toll Gate		↓	↑
BR	Edogawa Bridge		↓	↑
									Nagareyama	Chiba
1-1	Nagareyama IC	Nagareyama Toll Road	6.1	212.4		No free road access
2	Kashiwa IC	National Route 16	10.8	207.7	X	Bus Stop closed			Kashiwa
							100 km/h
BR	Tonegawa Bridge		↓	↑		Length - 775 m
									Moriya	Ibaraki
SA	Moriya SA		15.5	203.0
3	Yawara IC	National Route 294	19.1	199.4					Tsukubamirai
BR	Kokaigawa Bridge		↓	↑		Length - 230 m
4	Yatabe IC	Pref. Route 19 (Toride Tsukuba Route)	30.3	188.2					Tsukuba
BS	Bus Stop		↓	↑	X	Closed
4-1	Tsukuba JCT	Ken-Ō Expressway	34.6	183.9
PA	Yatabe-higashi PA		36.1	182.4
5	Sakura-Tsuchiura IC	National Route 354	38.7	179.8	X	Bus Stop closed
									Tsuchiura
BS	Bus Stop		↓	↑	X	Closed			Tsukuba
BS	Bus Stop		↓	↑	X	Closed			Tsuchiura
6	Tsuchiura-kita IC	National Route 125	46.6	171.9
PA	Chiyoda PA		50.4	168.1					Kasumigaura
7	Chiyoda-Ishioka IC	National Route 6	54.7	163.8
BR	Koisegawa Bridge		↓	↑		Length - 234 m
									Ishioka
BS	Ishioka Bus Stop		57.9	160.6	○
PA	Minori PA		63.2	155.3					Omitama
BS	Bus Stop		↓	↑	X	Closed
8	Iwama IC	Pref. Route 43 (Ibaraki Iwama Route)	69.1	149.4	X	Bus Stop closed			Kasama
BR	Hinumagawa Bridge		↓	↑		Length - 169 m
SA	Tomobe SA/ SIC		72.8	145.7
8-1	Tomobe JCT	Kita-Kantō Expressway	74.0	144.5
BS	Uchihara Bus Stop		77.9	140.6	○				Mito
9	Mito IC	National Route 50	82.0	136.5	X	Bus Stop closed
								Four
PA	Tano PA		85.6	132.9
BR	Tano Overpass		↓	↑		Length - 454 m
-	Mito-kita SIC	National Route 123 Pref. Route 51 (Mito Motegi Route)	87.7	130.8	X	ETC only Iwaki-bound exit, Tokyo-bound entrance only Bus Stop closed
BR	Nakagawa Bridge		↓	↑		Length - 500 m
BS	Bus Stop		↓	↑	X	Closed			Naka
10	Naka IC	Pref. Route 65 (Naka Inter Route)	93.8	124.7
BS	Bus Stop		↓	↑	X	Closed
PA	Tōkai PA		101.7	116.8					Tōkai
BR	Kujigawa Bridge		↓	↑		Length - 680 m			Naka
									Hitachi
11	Hitachiminami-Ōta IC	National Route 6	105.3	113.2
							80 km/h
TN	Hitachi Tunnel		↓	↑		Length - 2,440 m			Hitachiōta
									Hitachi
TN	Ōkubo-daiichi Tunnel		↓	↑		Length - 99 m
TN	Ōkubo-daini Tunnel		↓	↑		Length - 187 m
TN	Ōkubo-daisan Tunnel		↓	↑		Length - 1,004 m
TN	Suwa-daiichi Tunnel		↓	↑		Length - 1,078 m
TN	Suwa-daini Tunnel		↓	↑		Length - 221 m
TN	Narusawa Tunnel		↓	↑		Length - 850 m
TN	Sukegawa Tunnel		↓	↑		Length - 1,811 m
11-1/PA	Hitachi-chūō IC /PA	Hitachi Toll Road	117.5	101.0		No free road access
TN	Hirasawa Tunnel		↓	↑		Length - 129 m
TN	Daiōin Tunnel		↓	↑		Length - 595 m
TN	Kurakake Tunnel		↓	↑		Length - 1,866 m
TN	Ogitsu Tunnel		↓	↑		Length - 203 m
12	Hitachi-kita IC	National Route 6 Pref. Route 10 (Hitachi Iwaki Route)	124.3	94.2
							100 km/h
TN	Jūō Tunnel		↓	↑
13	Takahagi IC	Pref. Route 67 (Takahagi Inter Route)	135.2	83.3					Takahagi
SA	Nakagō SA		136.6	81.9					Kitaibaraki
14	Kitaibaraki IC	Pref. Route 69 (Kitaibaraki Inter Route)	142.4	76.1
TN	Sekinami Tunnel		↓	↑		Length - 1,365 m
TN	Sekimoto Tunnel		↓	↑
PA	Sekimoto PA		150.3	68.2
15	Iwaki-Nakoso IC	National Route 289	154.5	64.0	○				Iwaki	Fukushima
16	Iwaki-Yumoto IC	Pref. Route 14 (Iwaki Ishikawa Route)	167.1	51.4	○
PA	Yunotake PA		169.4	49.1
16-1	Iwaki JCT	Ban-etsu Expressway	171.2	47.3
17	Iwaki-chūō IC	National Route 49	175.5	43.0	○
							70 km/h	Two
TN	Yoshima Tunnel		↓	↑
BR	Natsuigawa Bridge		↓	↑
PA	Yotsukura PA		185.0	33.5
18	Iwaki-Yotsukura IC	Pref. Route 35 (Iwaki Namie Route)	188.3	30.2
TN	Ōhisa Tunnel		↓	↑
19	Hirono IC	Pref. Route 393 (Kamikitaba Shimokitaba Route)	202.1	16.4	○				Hirono
BR	Kidogawa Bridge		↓	↑		Length - 1,392 m			Naraha
PA	Naraha PA		↓	↑		Opens in 2011
20	Jōban-Tomioka IC	Pref. Route 36 (Ono Tomioka Route)	218.5	0.0					Tomioka
							-	-
<21>	Namie IC	National Route 114				Opens in 2011			Namie
<22>	Haramachi IC	Pref. Route 12 (Haramachi Kawamata Route)				Opens in 2011			Minamisōma
<SA>	Kashima SA					Opens in 2011
<23>	Sōma IC	National Route 115				Opens in 2011			Sōma
<24>	Sōma JCT					Planned
<25>	Shinchi IC	National Route 113				Opens in 2014			Shinchi
<26>	Yamamoto IC	National Route 6				Opens in 2010			Yamamoto	Miyagi
<PA>	Watari PA					Opens in 2014			Watari
1(27)	Watari IC	Pref. Route 269 (Watari Inter Route)

[edit] Sendai Area (Watari IC - Tomiya-kita IC)

• Watari IC - Sendaikō-kita IC : Sendai-Tōbu Road
• Sendaikō-kita IC - Rifu JCT : Sanriku Expressway (Senen Road)
• Rifu JCT - Tomiya-kita IC : Sendai-Hokubu Road

No.	Name	Connections	Dist. from Origin	Dist. from Terminus	Bus Stop	Notes	Speed Limit	Lanes	Location (all in Miyagi)
1(27)	Watari IC	Pref. Route 269 (Watari Inter Route)	0.0	34.0			70 km/h	Two	Watari
BR	Shinabukukuma Bridge		↓	↑		Length - 528 m
									Iwanuma
2(28)	Iwanuma IC	Pref. Route 125 (Iwanuma Kaihin Ryokuchi Route)	2.2	31.8
							100 km/h	Four
3(29)	Sendai Airport IC	Pref. Route 20 (Sendai Airport Route)	5.5	28.5					Natori
4(30)	Natori IC	Pref. Route 129 (Yuriagekō Route)	12.2	21.8
BR	Natorigawa Bridge		↓	↑		Length - 530 m
									Wakabayashi-ku, Sendai
5(31)	Sendai-Wakabayashi JCT	Sendai-Nanbu Road	15.2	18.8
6(32)	Sendai-higashi IC	Pref. Route 23 (Sendai Shiogama Route)	19.6	14.4
<33>	Sendaikō IC		↓	↑		Planned			Miyagino-ku, Sendai
1(34)	Sendaikō-kita IC	National Route 45	24.8	9.2
							70 km/h	Two
<1-1>	Tagajō IC	Pref. Route 35 (Izumi Shiogama Route)	↓	↑		Planned			Tagajō
2	Rifu JCT	Sanriku Expressway	28.8	5.2					Rifu
1(35)	Rifu-Shirakashidai IC	Pref. Route 3 (Shiogama Yoshioka Route)	34.0	0.0
							-	-
<(29-1)>	Tomiya JCT	Tōhoku Expressway				Opens in 2009			Tomiya
<36>	Tomiya-kita IC	National Route 4				Opens in 2009

[edit] References

1. ^ E-NEXCO Expressway Data. Retrieved on 2008-04-13.
2. ^ History of Tsukuba City. Retrieved on 2008-04-16.
3. ^ Ministry of Land, Infrastructure and Transport. High Standard Trunk Road Map (pdf). Retrieved on 2008-04-13.
4. ^ E-NEXCO Opening Schedule. Retrieved on 2008-04-15.
5. ^ Ministry of Land, Infrastructure and Transport, Tohoku Regional Development Bureau. Sendai Hokubu Road Profile. Retrieved on 2008-04-16.

[edit] External links

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Joban Expressway

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