This paper deals with the description of the various aspects faced in the design of the Archimedes Bridge prototype. The features of the selected location and the structural scheme, together with all the design requirements and design phases and outputs, are illustrated. The structural analyses aimed at investigating the prototype behaviour under the environmental loads and selecting the most suitable cable system configuration are described and the obtained results are discussed. The conception and the design of the constructional details, such as the anchoring connections, the internal and end joints, the windows are presented. The technical solution for the foundation of the anchoring system is illustrated. Finally, the fabrication and erection procedures are briefly described, they representing an important aspect of the design of such a revolutionary technological system.