Broad gauge railways line on the west coastal lowland is known as the Konkan Railway Line, is an engineering marvel of the Indian Railways. It is 760 km long railroute connecting Roha in Maharashtra to Mangalore in Karnataka. It crosses 146 rivers, streams, nearly 2000 bridges and 91 tunnels. It also passes through 6.5 km long tunnel which is Asia's largest tunnel. The states of Maharashtra, Karnataka, Goa are partners in this project.