Hokkaido Official Tourism Site HOKKAIDO LOVE!

Spanning 1,380 meters across Muroran Port, Hakucho Ohashi Bridge is the largest suspension bridge in eastern Japan. A shining symbol of the city, it transforms the natural power of the wind into graceful light.

With its elegant curves resembling a swan spreading its wings, Hakucho Ohashi Bridge is a true “bridge of dreams,” taking 25 years from conception to completion. As Japan’s first suspension bridge built in a snowy, cold region, it showcases the cutting-edge engineering of its time, including massive 47‑centimeter main cables composed of 127 high-tensile piano wires. By day, the pure white towers and countless suspension cables form striking geometric patterns against the blue sky and sea, accompanied by ocean breezes and the distant calls of seagulls.

As night falls, the bridge comes alive with eco-friendly LED lighting powered entirely by wind energy. Countless points of light tracing the main cables create the image of a luminous swan floating above the dark sea. At the nearby Hakucho Ohashi Bridge Memorial Hall, visitors can explore unique construction exhibits, including wind tunnel models built to withstand winds of up to 67 meters per second and the world’s first S-shaped suspension wires. This fusion of Muroran’s ironworking heritage and natural forces leaves a lasting impression on all who visit.