SCDF officers conduct a Search and Rescue operation after a section of the flyover collapsed.ST PHOTO: ARIFFIN JAMAR.
SINGAPORE: A number of possible reasons were cited for the tragic collapse of an uncompleted road viaduct linking the Tampines Expressway to the Pan-Island Expressway.And most were attributable to human error.
A veteran civil engineer said corbels are "extremely strong structures" which do not give way "just like that", referring to the Land Transport Authority's preliminary findings that "corbels supporting the pre-cast beams had given way".
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