Critical point removal and maintenance works of rural tracks in 3 lots. Lot 1: Matafo–Melea; Melea–Kindjiria; Kindjiria–Nguelea (38.5 km). Lot 2: Moune–Douboulboul5; Douboulboul1–Ngarangou (27.9 km). Lot 3: Ngarangou–Doumba–Goui (34 km)