Arches are structural members which have been developed for a very long time in building field. At the beginning, they were designed with limited materials and a conservative criterion, on the safety side, that led to material wasting and to a limited maximum span length range. Over time, the amount of material used to build them has been considerably decreasing because of new structural materials and technologies have emerged such that, nowadays, there is a better and proper use of materials related to their strength allowing a greater maximum span length range. Currently, engineers deal with a vast range of solutions and materials, therefore, they must look for an optimal solution in terms of cost and resistance.