Nowadays there are studies that show that bridges collapse mainly by scour caused by hydraulic action which implies high reconstruction costs. We can avoid the collapse of the bridge, reinforcing it by means of a system of cable-stayed arches, which will make it possible to hold the deck and eliminate the damaged elements. To this end, it is necessary to optimize the order and the magnitudes of adjustment of the tension of the hangers. In this paper, the use of the Animal Migration Optimization algorithm is proposed for the search of an optimal solution in a gradual way, which consists of two processes: the simulation of how groups of animals move from a current position to a new, and how during migration some animals leave the group and join others. Finally, we present experimental results, where the performance of the Animal Migration Optimization algorithm can be observed.