Torrential rainfall caused widespread flooding and infrastructure damage in Geoje and Tongyeong, South Gyeongsang Province, on Monday [1, 2].
The intensity of the storm disrupted local transportation and residential safety, highlighting the vulnerability of coastal infrastructure to extreme weather events.
Rainfall intensity exceeded 100 mm per hour [1], leading to immediate inundation across multiple districts. In Namjeong village within Geoje-myeon, the deluge overwhelmed drainage systems and damaged critical transit points [1, 2].
Video footage submitted by residents to YTN showed bridges filled with mud and collapsed asphalt. A YTN reporter said asphalt roads around bridges were damaged, leaving the ground beneath fully exposed [1].
The flooding extended into residential areas where water entered apartment complexes. A reporter for YTN said underground parking lots were inundated [1].
Local residents captured the scene as water surged through streets in Tongyeong and Geoje, transforming roads into rivers. The rapid accumulation of water caused significant damage to residential buildings, and public works [1, 2].
Emergency responses focused on the affected areas of South Gyeongsang Province as officials assessed the extent of the structural failures. The combination of high-volume rain and geographical vulnerability contributed to the rapid onset of the floods [1, 2].
“Rainfall intensity exceeded 100 mm per hour”
The occurrence of rainfall exceeding 100 mm per hour indicates a high-intensity weather event that can easily overwhelm standard urban drainage systems. When such volume falls in a short window, the resulting flash floods often cause structural failures in asphalt and bridge foundations, suggesting a need for reinforced infrastructure in South Korea's coastal provinces to withstand increasing precipitation extremes.
