© All Rights Reserved The Arrabida bridge over the River Douro in Porto. The concrete bridge was built in 1963 and was for sometime the widest single span concrete bridge in the world. It is 70 metres above the water and spans 252 metresRelated images Arrabida Bridge - The arch from below Panoramic View of Porto's Ribeira at Night Azeljos on Carmo Church in Porto McDonald's in Porto River Douro - Porto Downtown Porto