In Bahia, Mendes Júnior is responsible for an important transport connection: Lot 5 - Ferrovia de Integração Oeste-Leste (FIOL), located at the end of the bridge over the São Francisco River (Km 828+130) up to Barroca Creek (Km 990+170). The work is in the southeast of Bahia between Bom Jesus da Lapa and Caetité, with its base and central worksite in Guanambi.