Open main menu

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.

Jōban Expressway sign

Jōban Expressway
常磐自動車道
Route information
Length212.7 km[2] (132.2 mi)
Existed1981[1]–present
Major junctions
FromMisato Junction in Misato, Saitama
Shuto Urban Expwy Sign 6-Misato.svg Shuto Expressway Misato Route
Tokyo Gaikan Expressway
ToTomiya-kita Interchange in Tomiya, Miyagi
Japanese National Route Sign 0004.svg National Route 4
Location
Major citiesKashiwa, Tsukuba, Tsuchiura, Mito, Hitachi, Iwaki, Natori, Sendai
Highway system
National highways of Japan
Expressways of Japan

Contents

NamingEdit

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 (陸国) representing present-day Ibaraki Prefecture and Iwaki Province (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.[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.

OverviewEdit

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]

List of interchanges and featuresEdit

Main Route (Misato JCT - Watari IC)Edit

No. Name Connections Dist. from
Origin
Dist. from
Terminus
Bus Stop Notes Speed Limit Lanes Location
Through to   Shuto Expressway Misato Route
1 (80) Misato JCT   Tokyo Gaikan Expressway 0.0 300.4 80 km/h Six Misato Saitama
TN Misato Tunnel
1-1/TB Misato Toll Gate/SIC Pref. Route 52 (Koshigaya Nagareyama Route) 4.2 296.2 SIC: ETC only
Iwaki-bound entrance, Tokyo-bound exit only
BR Edogawa Bridge
Nagareyama Chiba
1-2 Nagareyama IC Pref. Route 5 (Matsudo Noda Route) 6.1 294.3
2 Kashiwa IC   National Route 16 10.8 289.6 X Bus Stop closed Kashiwa
100 km/h
BR Tonegawa Bridge Length - 775 m
Moriya Ibaraki
SA Moriya SA 15.5 284.9
3 Yawara IC   National Route 294 19.1 281.3 Tsukubamirai
BR Kokaigawa Bridge Length - 230 m
4 Yatabe IC Pref. Route 19 (Toride Tsukuba Route) 30.3 270.1 Tsukuba
BS Bus Stop X Closed
4-1 Tsukuba JCT    Ken-Ō Expressway 34.6 265.8
PA Yatabe-higashi PA 36.1 264.3
5 Sakura-Tsuchiura IC   National Route 354 38.7 261.7 X Bus Stop closed
Tsuchiura
BS Bus Stop X Closed Tsukuba
BS Bus Stop X Closed Tsuchiura
6 Tsuchiura-kita IC   National Route 125 46.6 253.8
PA Chiyoda PA 50.4 250.0 Kasumigaura
7 Chiyoda-Ishioka IC   National Route 6 54.7 245.7
BR Koisegawa Bridge Length - 234 m
Ishioka
BS Ishioka Bus Stop 57.9 242.5
7-1 Ishioka-Omitama SIC   National Route 355 60.9 239.5 ETC only
PA Minori PA 63.2 237.2 Omitama
BS Bus Stop X Closed
8 Iwama IC Pref. Route 43 (Ibaraki Iwama Route) 69.1 231.3 X Bus Stop closed Kasama
BR Hinumagawa Bridge Length - 169 m
8-1/SA Tomobe SA/
SIC
Pref. Route 16 (Ōarai Tomobe Route)
Pref. Route 52 (Ishioka Shirosato Route)
72.8 227.6 SIC: ETC only
8-2 Tomobe JCT   Kita-Kantō Expressway 74.0 226.4
BS Uchihara Bus Stop 77.9 222.5 Mito
9 Mito IC   National Route 50 82.0 218.4 X Bus Stop closed
Four
PA Tano PA 85.6 214.8
BR Tano Overpass Length - 454 m
9-1 Mito-kita SIC   National Route 123
Pref. Route 51 (Mito Motegi Route)
Pref. Route 63 (Mito Katsuta Nakaminato Route)
87.7 212.7 ETC only
Iwaki-bound exit, Tokyo-bound entrance only
BR Nakagawa Bridge Length - 500 m
BS Bus Stop X Closed Naka
10 Naka IC Pref. Route 65 (Naka Inter Route) 93.8 206.6
BS Bus Stop X Closed
10-1/PA Tōkai SIC/PA Pref. Route 62 (Hitachinaka Port Yamagata Route) 101.7 198.7 SIC: ETC only Tōkai
BR Kujigawa Bridge Length - 680 m Naka
Hitachi
11 Hitachiminami-Ōta IC   National Route 6
  National Route 293
105.3 195.1
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 117.5 182.9 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)
124.3 176.1
100 km/h
TN Jūō Tunnel
13 Takahagi IC Pref. Route 67 (Takahagi Inter Route) 135.2 165.2 Takahagi
SA Nakagō SA 136.6 163.8 Kitaibaraki
14 Kitaibaraki IC Pref. Route 69 (Kitaibaraki Inter Route) 142.4 158.0
TN Sekinami Tunnel Length - 1,365 m
TN Sekimoto Tunnel
PA Sekimoto PA 150.3 150.1
15 Iwaki-Nakoso IC   National Route 289 154.5 145.9 Iwaki Fukushima
<15-1> Iwaki-Onahama IC Pref. Route 20 (Iwaki Kamimisaka Ono Route) 161.0 139.4 Opens in 2021
16 Iwaki-Yumoto IC Pref. Route 14 (Iwaki Ishikawa Route) 167.1 133.3
PA Yunotake PA 169.4 130.0
16-1 Iwaki JCT   Ban-etsu Expressway 171.2 128.2
17 Iwaki-chūō IC   National Route 49 175.5 123.9
70 km/h Two
TN Yoshima Tunnel
BR Natsuigawa Bridge
PA Yotsukura PA 185.7 113.7
18 Iwaki-Yotsukura IC Pref. Route 35 (Iwaki Namie Route) 188.3 111.1
TN Ōhisa Tunnel
19 Hirono IC Pref. Route 393 (Kamikitaba Shimokitaba Route) 202.1 98.3 Hirono
BR Kidogawa Bridge Length - 1,392 m Naraha
19-1/PA Naraha PA/SIC Pref. Route 35 (Iwaki Namie Route) 207.4 93.0 SIC: ETC only
20 Jōban-Tomioka IC Pref. Route 36 (Ono Tomioka Route) 218.5 81.9 Tomioka
20-1 Ōkuma IC Pref. Route 251 (Oragahama Nogami Route) 222.5 77.9 Ōkuma
<20-2> Futaba IC Pref. Route 256 (Ide Nagatsuka Route) 227.9 72.5 Opens in 2019 Futaba
21 Namie IC   National Route 114 232.8 67.6 Namie
22 Minami-Sōma IC Pref. Route 12 (Haramachi Kawamata Route) 251.2 49.2 Minamisōma
22-1/SA Minami-Sōma Kashima SIC/SA Pref. Route 34 (Sōma Namie Route) 257.7 42.7 SIC: ETC only
Open 06:00-22:00
23 Sōma IC/JCT   Tōhoku-Chūō Expressway (planned)
  National Route 115
265.6 34.8 Sōma
24 Shinchi IC  National Route 113 274.1 26.3 Shinchi
24-1 Yamamoto-minami SIC Pref. Route 44 (Kakuda Yamamoto Route) 280.6 19.8 ETC only Yamamoto Miyagi
25 Yamamoto IC   National Route 6 288.9 11.5
25-1/PA Torinoumi SIC/PA Pref. Route 38 Sōma Watari Route via Watari SIC Line 295.0 5.4 SIC: ETC only Watari
1 Watari IC Pref. Route 269 (Watari Inter Route) 300.4 0.0

ReferencesEdit

  1. ^ "History of Tsukuba City". Retrieved 2008-04-16.
  2. ^ "E-NEXCO Expressway Data". Archived from the original on 2007-12-13. Retrieved 2008-04-13.
  3. ^ 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.
  4. ^ "E-NEXCO Opening Schedule". Retrieved 2008-04-15.
  5. ^ 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.CS1 maint: Multiple names: authors list (link)

External linksEdit