The total length of National Highways (NHs) across the country is about 1,00,475 km at present. Out of this, about 22,115 km length and 2,572 km length of NHs are having 4-lanes and 6-lanes respectively. The target for upgradation of existing NHs to 4-lane and 6-lane standards during 2015-16 are about 1,356 km and 154 km respectively.