Arrábida Bridge over Douro River in Porto. Inaugurated on June, 22, 1963.
Concrete open spandrel deck arch bridge. Total lenght: 493 m, arch span: 270 m, arch rise: 52 m, deck height: 70 m
Designed by Portuguese bridge guru, Edgar Cardoso (1913-2000), the Arrábida bridge held, for quite some time, the
world record for the "Longest Concrete Single Arch Bridge". It is still the 9th world's longest concrete arch bridge.