Histra Bridges performs nonlinear static analyzes on multi-span masonry arch bridges. It is possible to analyze the load-bearing capacity of the bridge subjected to loads from road or railway traffic by means of non-linear analyzes aimed at determining the collapse multiplier. It is possible to carry out pushover seismic analyzes with force distributions proportional to the masses or modes of vibration, as well as carry out the seismic vulnerability check of the structure in accordance with current legislation.