Bruhat Bengaluru Mahanagara Palike (BBMP) is reportedly using highly sophisticated machinery to repair potholes on Bellary Road as a part of the first phase of the repair drive. The new technology is known as micro-milling. It is one of the most proven technologies to treat potholes and the technology is highly cost-effective. When BBMP was filling up potholes with patchwork, the work was not appreciable because of overlaying. Moreover, the cost was significantly higher, almost INR 300 per square metre.
The micro-milling technology has brought down the cost to INR 45 per square metre. The method requires workers to dig a one square metre space from the pothole till its base. The space is then filled with hot mix. Asphalt and cement are also used to seal the holes. This way, the workers are able to fix the potholes from its base. Another method is to mill a one-foot portion from the footpath. This allows the water to taper off, not causing any water-logging or depression.
“This step is very essential to for micro-surfacing of road which will entail providing a 6mm layer of work called Road doctor, which will prevent potholes for another three years. There are only 12 such milling machines in the country. The machine we are using has been brought from Pune. As part of the first phase of repair work, Bellary road will be taken up,” a top BBMP official told BangaloreMirror.