The Toukomtore dam in Burkina Faso was built as a road embankment to meet the water needs of the populations of the commune of Koubri. The dam's watershed is not immune to the various climatic and anthropogenic pressures that have caused it to fill up. The objective of this study is to identify the sources of sediment supply to the dam. To do this, the study relies on documentary research, individual interviews with agents of the deconcentrated technical services of the State and users as well as field observations. The results of the study reveal that the sediments in the dam basin come from intense gullying areas, bare areas, bank erosion, market gardening plots and local drains, but also from aggregate extraction sites and brick factories. The results also show that the basin of the dam has lost its initial capacity of reception due to the phenomenon of filling. These results provide indicative elements on the potential origin of the sediments of the dam and are useful for the implementation of the recommendations that have been formulated
