Several roads in the city are being strengthened by the Highways Department at a total cost of ₹45 crore. These roads are getting stronger top layers after being cold milled or scrapped.
“Milling has been made mandatory, and it is being done for stretches that were re-laid five years ago. Milling costs ₹100 per sqm. At present, the material that is removed is used as filling in embankments,” a source said.
In longer stretches, the strength of the bituminous tar is checked at different locations, and the material is recycled by adding the required bitumen. This is done as part of the road re-laying process, a retired highways engineer said.
