The Outer Ring Road is a major transport corridor being developed along the periphery of Chennai Metropolitan Area (CMA) by the Chennai Metropolitan Development Authority (CMDA). It is 62.3 km long connecting NH 45 (GST Road) at Vandalur, NH 4 (GWT Road) at Nazarathpet, NH 205 (CTH Road) at Nemillicherry, Tiruninravur to NH 5 (GNT Road) at Nallur and TPP road at Minjur. On 29 August 2010, the then Tamil Nadu Deputy Chief Minister M. K. Stalin laid the foundation for the first phase of the project from Vandalur to Nemillicherry, Tiruninravur covering a distance of 30 km.