Concessionária Rio Barra S.A. is comprised of Brazilian companies Queiroz Galvão, Odebrecht and Carioco Engenharia. It was awarded a 25-year concession to build and operate Rio de Janeiro's No. 4 metro line (Barra da Tijuca-Ipanema). The line will be 10km long, with seven stations, and connect to the No. 1 line's downtown Carioca station. It is scheduled to start operating in time for the 2016 Olympic Games.