Tokyo Metro Hanzomon Line Resumes After Asbestos Found at Station

Tokyo Metro shut down the Hanzomon Line between Shibuya and Kudanshita stations on August 12 after workers discovered asbestos-containing material at Hanzomon Station. The operator suspended service from the first train of the day and restored full operations by 7:20 PM. The discovery forced thousands of commuters to seek alternate routes during the morning rush.

What happened at Hanzomon Station

Workers found asbestos-containing material at Hanzomon Station on August 12. Tokyo Metro immediately halted service on the affected section and began containment work. The suspension lasted approximately 12 hours, affecting the line’s busiest commute period.

Service suspension and commuter impact

The Hanzomon Line stopped running between Shibuya Station and Kudanshita Station from the start of service. Commuters faced delays and crowding on alternate routes. Tokyo Metro had initially warned the line might remain closed all day, but crews completed the necessary measures faster than expected.

Full service restored by evening

Tokyo Metro announced full service resumption around 7:20 PM on August 12. The operator did not disclose the exact nature of the asbestos-containing material or its location within the station. No injuries or health incidents were reported during the suspension.

Final Thoughts

The brief suspension disrupted morning commutes for thousands but resolved by evening. Tokyo Metro’s quick response prevented an all-day closure, though the discovery raises questions about aging infrastructure maintenance across the transit system.

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