Authorities reopened the Yoko River Bridge on Monday morning after completing emergency support measures on the sunken structure [1], [2].
The reopening restores a critical regional artery in Kumamoto Prefecture, ensuring that all main roads between Ushi and Yatsushiro are now passable for traffic [1], [2].
The bridge was damaged during a Kumamoto earthquake that struck on July 28 at 16:27 local time [3]. Following the seismic event, the bridge sank approximately one meter [1]. This subsidence forced the closure of the prefectural road, disrupting travel between the two municipalities for nearly three weeks.
Engineering teams worked to install temporary support measures to stabilize the bridge and prevent further sinking [1], [2]. The completion of these emergency works allows the road to reopen 20 days after the initial earthquake [1].
While the Yoko River Bridge was stabilized, other infrastructure in the region suffered different types of damage. Some other bridges, such as the Kawada Bridge, experienced splitting following the same July 28 earthquake [4].
The restoration of the Yoko River Bridge is part of a broader effort to stabilize the transportation network in Kumamoto. Local officials said they have focused on these temporary fixes to resume the flow of goods and people before permanent reconstruction begins.
“The bridge sank approximately one meter”
The rapid deployment of temporary supports highlights the priority of restoring logistical connectivity in earthquake-prone regions of Japan. While the Yoko River Bridge is now passable, the disparity in damage—ranging from sinking to structural splitting—indicates a varied impact on regional infrastructure that will require long-term, permanent engineering solutions beyond these emergency measures.
