Seishō Bypass
| Seishō Bypass | |
|---|---|
| 西湘バイパス | |
| Route information | |
| Length | 14.5 km 1.8 km (Ishibashi Branch Route) (9.0 mi) Main Route |
| Existed | 1967–present |
| Major junctions | |
| From | Seishō-Ninomiya Interchange in Ninomiya, Kanagawa Seishō Bypass (toll-free section) National Route 1 |
| To | Hakoneguchi Interchange in Odawara, Kanagawa Odawara-Hakone Road National Route 1 Ishibashi Interchange in Odawara, Kanagawa National Route 135 |
| Location | |
| Country | Japan |
| Highway system | |
The Seishō Bypass (西湘バイパス, Seishō Baipasu) (lit. West Shōnan Bypass) is a toll road in Kanagawa Prefecture, Japan. It is owned and managed by Central Nippon Expressway Company.