Bridge fell due to corrosion, lack of inspectionBy Shelley Shan / Staff reporterSevere corrosion of stranded steel wires and a lack of inspections necessary for special bridges were the main reasons leading to the collapse of the Nanfangao Bridge (南方澳大橋) in Yilan County’s Port of Suao on Oct. 1 last year, an investigation by the Taiwan Transportation Safety Board showed yesterday. “Anchors and the stranded steel wires on the bridge were immersed in salty water for a long period of time, corroding stranded steel wires,” the board said. Before the accident, stranded steel wires at cable Nos. 10, the residual strength of the corroded stranded steel wires in cable No. The broken steel cables led to increased stress on the bridge’s steel girders, which eventually caused the bridge to collapse, the board said.

Source: Taipei Times November 25, 2020 15:56 UTC