The ability of the reinforced soil retaining walls to take deformations and settlements of the foundation formations without losing their bearing capacity suggests it is one of the best solutions for the support of unstable slopes in loose formations. The failed slope analyzed in this study is located in a thick zone of weathered granite, acting like a relatively loose soil material. The landslide affected a slope sited within the limits of the urban area of Alona village, west of Florina town. Two houses were subjected to serious damages, a secondary road and a path were interrupted and a stream was blocked causing disruption to the local community.

For the restoration of the slope a reinforced soil retaining wall was suggested. This wall allows the reconstruction of the road and the pathway and at the same time restores the initial geometry of the slope without severely changing the pre-failure stress field developed in the foundation formation. The mechanical characteristics of the geological formation were estimated by conducting back analysis of the failure.