|Length:||15.1 km (9.4 mi)|
|Existed:||1988 – present|
|From:||Fujisawa Interchange in Fujisawa, Kanagawa
National Route 1
|To:||Ōiso-higashi Interchange in Ōiso, Kanagawa
Seishō Bypass (toll-free section)
National Route 134
|Major cities:||Chigasaki, Hiratsuka|
|National highways of Japan
Expressways of Japan
Officially the road is designated as a bypass for National Route 1. It is also classified as a road for motor vehicles only (自動車専用道路 Jidōsha Senyō Dōro) and access is controlled with interchanges and junctions in a similar manner to national expressways in Japan.
The first section of the road (8.4 km from Fujisawa Interchange to Chigasaki-nishi Interchange) was opened to traffic in 1988. A second section (6.7 km from Chigasaki-nishi Interchange to Ōiso-higashi Interchange) is planned; 1.6 km of the second section was opened to traffic in 1995. Beyond the terminus in Ōiso the road is expected to connect directly to the eastern terminus of the Seishō Bypass.
List of interchanges and features
(all in Kanagawa)
|Through to Ken-Ō Expressway (Planned)|
|Fujisawa IC||National Route 1||0.0||Fujisawa|
|TB||Chigasaki Toll Gate||↓||Chigasaki|
|25||Chigasaki JCT||Ken-Ō Expressway||↓|
|Chigasaki-nishi IC||National Route 1||8.4||Ōiso-bound exit, Fujisawa-bound entrance only|
|Chigasaki-Kaigan IC||National Route 1||9.6||Ōiso-bound exit, Fujisawa-bound entrance only|
|<6>||Hiratsuka IC||National Route 134||↓||Planned||Hiratsuka|
|<TB>||Hiratsuka Toll Gate||↓|
|<7>||Ōiso-higashi IC||National Route 134||15.1||Ōiso|
|Through to Seishō Bypass (toll-free section)|
- Japan Civil Engineering Contractors' Association. "Construction History of Japan". Retrieved 2008-06-06.
- Ministry of Land, Infrastructure and Transport, Kanto Bureau, Kawasaki Office. "50 Years of Roads in Kanagawa Prefecture". Retrieved 2008-06-06.
- Ministry of Land, Infrastructure and Transport, Kanto Bureau, Yokohama Office. "Shinshonan Bypass Informational Page". Retrieved 2008-06-06.
- Ministry of Land, Infrastructure and Transport, Kanto Bureau. "Ken-O Expressway in Kanagawa Prefecture". Retrieved 2008-06-06.
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