Jōban Expressway

Jōban Expressway
常磐自動車道
Route information
Length: 212.7 km[1] (132.2 mi)
Major junctions
From: Misato Junction in Misato, Saitama
Shuto Expressway Misato Route
Tokyo Gaikan Expressway
To: Tomiya-kita Interchange in Tomiya, Miyagi
National Route 4
Location
Major cities: Kashiwa, Tsukuba, Tsuchiura, Mito, Hitachi, Iwaki, Natori, Sendai
Highway system
National highways of Japan
Expressways of Japan

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

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) representing present-day Ibaraki Prefecture and Iwaki Province (磐城国) 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.[2] 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.

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,[3] and extensions and upgrades to the existing Sendai road network are also planned.[4]

List of interchanges and features

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
10-1/PA Tōkai SIC/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 Minami-Sōma IC Pref. Route 12 (Haramachi Kawamata Route) 251.2 Minamisōma
<SA> Kashima SA ↓ ↑ Opens in 2014
23 Sōma IC National Route 115 265.6 Sōma
<24> Sōma JCT Planned
<25> Shinchi IC National Route 113 Opens in 2014 Shinchi
26 Yamamoto IC National Route 6 288.9 11.5 Yamamoto Miyagi
<PA> Watari PA ↓ ↑ Opens in 2014 Watari
1(27) Watari IC Pref. Route 269 (Watari Inter Route) 300.4 0.0

Sendai Area (Watari IC - Tomiya-kita IC)

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

References

  1. ↑ "E-NEXCO Expressway Data". Retrieved 2008-04-13.
  2. ↑ Ministry of Land, Infrastructure and Transport. "High Standard Trunk Road Map" (PDF). Archived from the original (pdf) on September 20, 2011. Retrieved 2008-04-13.
  3. ↑ "E-NEXCO Opening Schedule". Retrieved 2008-04-15.
  4. ↑ Ministry of Land, Infrastructure and Transport, Tohoku Regional Development Bureau. "Sendai Hokubu Road Profile". Archived from the original on 2008-04-02. Retrieved 2008-04-16.
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