The Machico-Caniçal highway, with 8 km long, is part of Madeira Island development program, connecting Funchal city to Caniçal village trough a continuous highway along the islands south coast. This highway crosses an extremely mountainous region, conditioned by the existence of two very heterogeneous volcanic complexes, generally covered by unstable slope deposits or by deep alluvial deposits. Those geological conditions lead to the execution of a wide range of civil engineering works. This paper presents the most relevant geological and geotechnical aspects identified along this highway, in particular in what special engineering structures (tunnels, bridges and viaducts) and retaining walls were concerned.

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