How long is Seto Ohashi Bridge?

The bridge system consists of six separate bridges connecting five islands, with a total length of approximately 13.1 kilometers including approach sections.

Can I walk or bike across Seto Ohashi Bridge?

No. The bridge has no pedestrian or bicycle access for safety and design reasons. Crossing is only possible by car, bus, or train.

Where can I get views of Seto Ohashi Bridge?

Seto Ohashi Memorial Park on the Sakaide (Kagawa) side has museums and observation towers. Washuzan Hill on the Kurashiki (Okayama) side provides panoramic views. Boat tours in the Seto Inland Sea also pass near the bridge.

How long does it take to drive across the bridge?

Driving across the Seto-Chuo Expressway takes approximately 15 to 20 minutes under normal traffic conditions.

Does the bridge carry both cars and trains?

Yes. The bridge has a double-deck structure with the Seto-Chuo Expressway for vehicles on the upper deck and the JR Seto-Ohashi Line for trains on the lower deck.

Kagawa

Seto Ohashi Bridge

4.6 (737)BridgeTransportation ServicePoint Of InterestEstablishment

Last updated May 17, 2026

Seto Ohashi Bridge is a bridge system spanning the Seto Inland Sea, linking Okayama Prefecture on Honshu with Kagawa Prefecture on Shikoku. Completed in 1988 after nearly ten years of construction, the bridge created a permanent link between Shikoku and the main islands, replacing ferry services. The system consists of six separate bridges connecting five islands, with total length approximately 13.1 kilometers. Construction addressed deep water, strong currents, and accommodation of road and rail traffic. The bridge carries the Seto-Chuo Expressway for vehicles and JR Seto-Ohashi Line for trains on a double-deck structure.

The bridge transformed Shikoku's connectivity and economy, ending isolation and enabling efficient movement. The engineering demonstrates Japan's technological capabilities, with design withstanding earthquakes, typhoons, and maritime conditions. The bridge is a Seto Inland Sea landmark providing dramatic sea and island views. The double-deck design combines road and rail infrastructure.

Visitors experience the bridge by crossing via car, bus, or train. Driving across the Seto-Chuo Expressway provides elevated sea and island views from the upper deck, with crossing taking approximately 15 to 20 minutes. Train passengers on the JR Seto-Ohashi Line travel on the lower deck. Observation facilities near bridge approaches include Seto Ohashi Memorial Park on the Sakaide (Kagawa) side, featuring museums, observation towers, and construction exhibitions.

Washuzan Hill observation point on the Kurashiki (Okayama) side provides panoramic bridge and seascape views. These viewpoints allow appreciation of the bridge's scale and engineering. Seto Inland Sea boat tours sometimes pass beneath or near the bridge, offering water-level perspectives.

The bridge connects Okayama on Honshu to Sakaide and Utazu in Kagawa on Shikoku. The JR Seto-Ohashi Line connects Okayama Station with Takamatsu Station, crossing the bridge in approximately 50 to 60 minutes. The Seto-Chuo Expressway allows vehicular crossing with tolls (typically several thousand yen). Seto Ohashi Memorial Park is accessible via buses or taxis from JR Sakaide Station. Washuzan Hill is accessible from JR Kojima Station or by car.

Phone

+81 877-45-5511

Website

www.jb-honshi.co.jp

Overview

Address

Japan, 〒762-0025 香川県坂出市川津町

Frequently Asked Questions

Traveler reviews

Location: Spanning the Seto Inland Sea, connecting Okayama and Kagawa Prefectures, Japan The Great Seto Bridge (瀬戸大橋) is not just a transit route; it is a breathtaking monumental achievement that harmonizes raw human ingenuity with the gentle, timeless beauty of Japan’s Seto Inland Sea. Spanning roughly 13.1 kilometers (8.1 miles), this massive series of ten bridges is one of the world's longest two-tiered bridge systems, carrying both a highway on the upper deck and a railway below. To see it in person is to truly appreciate its scale. The colossal steel towers rise majestically against the horizon, cutting through the emerald waters and linking a chain of lush green islands like a string of pearls. Crossing the bridge offers unparalleled, panoramic views of the sea, dotted with small fishing boats and rolling islands. Riding the Marine Liner train on the lower deck provides a unique, rhythmic perspective as the sea flashes between the steel framework. Whether you are an engineering buff marveling at how this structure withstands earthquakes and typhoons, or a traveler looking for a profound scenic moment in Japan, Seto Ohashi does not disappoint. It is a powerful reminder of what is possible when human ambition respects and complements the natural landscape.

KALAM LANGUAGE SCHOOL & CULTURAL CENTER

Jul 7, 2026

Traveling by JR train from Okayama to Takamatsu, crossing the Seto Ohashi Bridge is an unforgettable experience. The train runs above the Seto Inland Sea, offering beautiful views of the calm water and scattered islands, combined with impressive steel bridge structures. This iconic bridge carries both railway and highway traffic, making the journey itself a highlight of the trip. Highly recommended during daytime—sit by the window for the best views!

I visited Seto Ohashi Bridge （瀬戸大橋) in winter, just before Christmas. The area was very quiet, and the park felt peaceful and well maintained. With the clear, sunny winter weather, everything looked beautiful — the bridge, the sea, and the surrounding scenery all came together perfectly. It’s a lovely place to take photos, as the natural light really enhances the view even without crowds. If you enjoy serene landscapes and a slower pace, winter is a wonderful time to visit.

This bridge, spanning from Kagawa Prefecture to Okayama Prefecture, is divided into three sections, crossing an island in the middle. The entire structure is grand and breathtaking, with stunning views of the surrounding islands and passing ships. The scenery alone makes it well worth a visit.

Stunning views of the Seto Inland Sea and its many islands!