Taiwan Railways Considers Early Warning Systems for Bridges Amidst Extreme Weather Threats

Taiwan Railways Administration (TRA) is exploring the installation of early warning systems for bridges spanning rivers susceptible to extreme weather and flash floods, following a series of damaging incidents. The move comes after Typhoon Chami in July 2024 washed out a section of the railway bridge over the Xiaoching River, causing significant disruption to the eastern main line.

Another incident in June 2025 involving a landslide-induced lake in the Wanli River prompted TRA to re-evaluate safety measures. The new Wanli River bridge is situated directly over the riverbed, highlighting the vulnerability of the infrastructure. TRA is considering installing water level gauges and sensors upstream of these rivers to provide advance warnings of potential risks.

TRA Deputy General Manager Liu Shuang-huo stated that the exact placement and number of sensors will require further on-site assessments and engineering designs. He emphasized the need for budget approval for these new initiatives, expressing concern about potential delays similar to those experienced with the general budget.

The proposed system aims to enhance the safety of railway operations, particularly along routes prone to natural disasters. The TRA is also reviewing the safety of other bridges located in riverine areas.

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The Wanli River landslide event in June this year has made TRA rethink railway safety warnings on river crossings. The new Wanli River bridge is located on the Wanli River bed. The current idea is to add water level gauges, placed upstream, which can provide early risk warnings and install sensors to notify in advance if the river water rises rapidly, while also inspecting the safety of tracks on other river basins.