Six CMDA engineers, working in two shifts, are scanning the Vivekananda Road flyover in north Calcutta, a part of which collapsed in March 2016, every day for signs of any further damage that could bring down the rest of the structure.
The engineers are examining the flyover from 9am to 9pm, with their trained eyes as well as with the help of machines, looking for signs of subsidence in the concrete, deflection caused by stress and lack of maintenance.
The flyover was still under construction when a portion of it, near Girish Park, collapsed.
Rows of steel rods have been lying dumped on a portion of the 2km-long flyover, adding to the weight on the deck slabs. Water has been seeping into the concrete, resulting in growth of plants and making the structure even more vulnerable.