Study To Evaluate The Siltation Of Dam Reservoirs For The Benefit Of The Water Research And Planning Department: Lot 1: Oued Al Makhazine, Acharif Al Idrissi, Nakhla, Al Wahda, Mansour Dahbi. Lot 2: Ghiss, Mohammed V, Oued Za, Mechraa Hommadi, Hassan Addakhil.