The consumption of natural materials for construction purpose is increasing each year while the resources are limited. To reduce the environmental burden and efficiently optimize resources, the use of local and alternative resources as building materials is necessary. This solution is not always convenient, especially for the isolated places like islands, and the Magdalen Islands in Quebec are not an exception. Those islands are currently in a shortage of granular materials and must import them, which represents considerable economic and environmental costs. The general goal of this contribution is to take advantage of the local dredged sands, to be reused in civil engineering infrastructures. This study explores the feasibility of consolidated sandy sediments as an artificial rock, which may serve as mass elements for coastal protection against erosion