A design flaw and inadequate concrete curing in a cantilevered segment of an elevated rail track being built in Delhi, India, caused the July 12 collapse that killed six people, according to a government report released on July 28. The rail agency Delhi Metro Rail Corp. (DMRC) may ban from further work the design-build contractor that holds several other contracts on the system. DMRC also is inspecting 87 piers previously constructed for the project. Photo: AP/Wideworld Report points to detailing flaws and concrete curing issues in girder collapse. A 4.2-meter-long cantilevered segment collapsed when crews with Gammon India, Mumbai, used
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