The Gurugram Metropolitan Development Authority (GMDA) has planned to build over 5,000 road gullies in the city to avoid waterlogging and ensure that rainwater flows into stormwater drains rather ...

When rain does fall on a burned area like this, water mixes with the ash, rocks and sediment to form a slurry. This slurry of debris then pours downhill in small gullies called rills, which then ...