The François Rabelais University of Tours carries an operation called R-TEMUS which means Restoration of the bed and ecological, morphological and usage trajectories in Lower Loire. This multidisciplinary study conducted over the years 2016-2017 aims to quantify the sediment load conveyed by the Loire upstream of the estuary and is part of a global project to rebalance the minor bed of the Loire upstream of Nantes. This operation is submitted under Action 13 of the ERDF Loire Basin POI.