Chikugo River Bascule Bridge

Overview

The Chikugo River Bascule Bridge, opened in 1935, is a 507.2-meter-long bascule bridge that once carried the JR Saga Line. As the oldest surviving bascule bridge in Japan, where a section of the bridge deck moves vertically, it was once known as the "Number One Bascule Bridge in the Orient." Its construction was influenced by the geographical location at the mouth of the Chikugo River, directly affected by the tides of the Ariake Sea. With a busy port nearby, the frequent passage of large ships made a traditional fixed bridge impossible. Therefore, a central section was designed to lift, allowing for safe ship passage. The Saga Line closed on March 27, 1987, before the privatization of Japanese National Railways, and the bridge was subsequently closed. Although demolition was considered, strong local support led to its preservation. In 1992, it was transferred free of charge from the Japanese National Railways Settlement Corporation to Okawa City. It reopened in 1996 as a pedestrian walkway, becoming a symbol of both Okawa City and Suketome Town. Parks are situated at either end of the bridge, preserving monuments depicting the bridge's original appearance, and showcasing three-light signal equipment and warning devices used on the Saga Line. An office in the central section of the bridge houses exhibits on its mechanism and history. Designated an Important Cultural Property of Japan, the Chikugo River Bascule Bridge is also recognized as a Mechanical Heritage (No. 23) by the Japan Society of Mechanical Engineers. Today, it serves not only as a tourist attraction but also as a beloved recreation spot for locals, offering a valuable glimpse into history and culture. Experience the history and engineering marvel of the Chikugo River Bascule Bridge for yourself!