Two years of work goes into clearing the sand-trap in channel leading to the port
VISAKHAPATNAM: The "island'' formed on the Ramakrishna beach here last week grabbed everyone's attention.
The formation was a result of the dredging taken up by the Dredging Corporation of India (DCI) for the Visakhapatnam Port Trust (VPT) to clear the sand-trap in the channel in the Bay leading to the port.
In the dredging taken up in the last two years, the process adapted was pumping out the deposits in a rainbow-shaped jet. The sand was carried to the land with the flow of the waves. While clearing the channel for the port to facilitate better movement of vessels, with the sand being carried to the beach it doubles as a beach nourishment project.
Over the last several years, the beach has been undergoing erosion and nourishment now will result in restoration of sand level.
For the first time, the DCI has taken up dredging by using a floating pipeline. After dredging at the Dolphin's Nose area in the sea, the sand is deposited by a 250-metre pipeline on the beach. Sources said the method was effective. The island formed on the Ramakrishna Beach is of 300 X 300 metre dimension displacing 5-metre deep water, they elaborated.
The dredging by DCI's D 17 dredger began on March 1. It is likely to continue till the month-end.
The sand-trap is of the magnitude of 4.5 lakh to 5 lakh cubic metres and the effort will be to dredge the maximum and pump it on to the beach using pipes. The places for pumping sand are decided by the VPT and are also based on the suitability for location of the dredger taken into account.