Concept design on behalf of AGENCE NATIONALE D’ÉTUDES ET DE SUIVI DE LA RÉALISATION DES INVESTISSEMENTS FERROVIAIRES. Identification of the alignment after railway speed upgrading to 100km/h. The existing single track line, circa 300km long, connect Annaba Port to the mines located in the south part of Oued Kebrit. Due to the fact that the alignment runs in a mountain area, there are several viaducts and tunnels. 3 passing loops have been foreseen to facilitate the railway traffic. Railway tracks have been re-designed.