ABSTRACT: Bridges are always built to provide passage over an obstacle. Gravity and other actions imply a supporting structure is present. Whatever the structure and regardless of equipment or decorative elements to be added, an architectonic form is hence defined. Evidently, the aesthetic value of the resulting structure refers to its architectonic form. Therefore, the architecture of the structure is implicit in the definition of the structure and its aesthetics must spring from the synthesis of all factors affecting the subjectivity of beauty.