Andhra Pradesh Government has taken very prestigious for constructing the flyover near Kanaka Durga Temple. In this process they have to dig the piles in Krishna River to construct the pillars for the flyover. Below is the process.
The contract company has brought an advanced "Dredging Boat" from Goa. This will send reclamation pipelines and bring the sand out to the banks of the river. It will dig out 300 cubic meters pit in one hour. After that Iron Alignment will be placed in the pit and then concrete. In this whole process, they take care that water will not go into the pit.