The video footage shows that about seven seconds after the initial collapse, a second section of the building starts to fall. According to Jack P. Moehle, a professor of structural engineering at ...

A leading hypothesis focuses on how a defective pool deck may have led a large section of the 12-story building to suddenly crumple in June 2021.

The deck slab casting was preceded by the section’s final girder-launching (of a 28m span) on July 20. The corridor is elevated till Mominpore station and ducks underground from here to Esplanade.