A Roman bridge in the sense of this article includes any of these features:
Also listed are bridges which feature substantially Roman material (Spolia), as long as the later bridge is erected on the site of a Roman precursor. Finally, incidences where only excavated bridge inscriptions lay testimony to the existence of a now perished Roman bridge are also included.
In the following, bridges are classified either according to their material or their function. Most data not otherwise marked comes from O’Connor's Roman Bridges which lists 330 stone bridges for traffic, 34 timber bridges and 54 aqueduct bridges. An even larger compilation is offered by the Italian scholar Galliazzo who describes more than 900 Roman bridges (as of 2011, his list is used here only selectively).
Extremadura (English //; Spanish: [e(k)stɾemaˈðuɾa]; Extremaduran: Estremaura [ehtɾemaˈuɾa]) is an autonomous community of western Spain whose capital city is Mérida. Its component provinces are Cáceres and Badajoz. It is bordered by Portugal to the west. To the north it borders Castile and León (provinces of Salamanca and Ávila); to the south, it borders Andalusia (provinces of Huelva, Seville, and Córdoba); and to the east, it borders Castile–La Mancha (provinces of Toledo and Ciudad Real). Its official language is Spanish.