Nagpur : MahaMetro, which prides itself for building the greenest Metro of the country, is taking care of water conservation too. It is doing rainwater harvesting on a large scale to recharge the city’s groundwater.
A MahaMetro official said grating (holes) have been built in the centre of the viaduct so that rainwater does not get collected in it. “There is slight slope towards the centre and water will flow into it. There is one grating for three segments. The grating is connected to a PVC pipe in the segment, which in turn is linked with a pipe in the Metro pillar,” he added.
The pipe in Metro pillar has a hole at the bottom and water will spill over on the median (road divider). The median has pebbles and earth. “The pebbles will store water and gradually release it into the soil. However, during heavy rains water will flow out of the median onto the roads through holes in the median wall,” said the official.
According to the official, rainwater harvesting would not save much money for the Metro, but its purpose was recharging the groundwater of the city and save fresh water.