JR East launched substitute bus services Monday for a suspended section of the Sotobō Line following damage from heavy rain [1].
The disruption affects a critical transit corridor in Chiba Prefecture, forcing commuters to rely on road transport while rail infrastructure undergoes safety assessments.
The substitute bus service operates on Aug. 17 from 6 a.m. to approximately 9 p.m. [1]. These buses serve passengers traveling between Hodda and Honno stations, where train services remain halted [1].
JR East has provided a tiered timeline for the resumption of rail services. The segment between Oami and Honno is planned to reopen on Aug. 18 [1]. However, the section between Hodda and Oami is not expected to resume operations until Aug. 24 [1].
Road infrastructure in the region has also faced challenges. While some highway closures were lifted early Monday morning [1], lane restrictions remain in effect on the Chiba East Kanto Expressway and the Ken‑Ō Expressway [1].
Authorities said the heavy rain caused significant damage and safety concerns across both the rail and highway networks [1], [3]. The ongoing lane restrictions on the expressways continue to impact traffic flow in the affected areas of Chiba Prefecture [1], [2].
“Substitute bus service operates on Aug. 17 from 6 a.m. to approximately 9 p.m.”
The phased reopening of the Sotobō Line indicates that the damage between Hodda and Oami is more severe than the damage near Honno. The continued lane restrictions on major expressways suggest that soil stability or debris clearance remains a priority for Chiba prefectural authorities, prolonging the regional transit bottleneck.
