STUDY OF DAMS’S SEDIMENTS TO MANAGE BY DREDGING AND VALORIZATION : CASE STUDY AL-KATTABI DAM – MOROCCO

Since the existence of humanity the question of storing and managing water was a vital issue, to answer this question man started very early to build reservoirs and dams in order to guarantee his life and build its civilizations .The role of these works has been spread to several advantages which revolve around the welfare of the human being, such as: Irrigation, livestock watering, tourism, fish farming, navigation, tourism, extinction fires, flood capping and energy production. The durability of these works was also challenged by the phenomenon of sedimentation that results from the deposition of eroded materials from basins pouring and transported by water and trapped by dams dams. In the arid and semi-arid zones this problem causes the serial death of several dams, these dams reached their end of life with an excessive speed, which makes the management of these sediments a problematic which necessitates studies and in-depth researches. It is in this context that this study is established with the aim of quantifying, identifying and exploiting sediments as a substitute for building materials and environmental conservation