The Infante D Henrique Bridge is, according to this, a prestressed concrete deck-stiffened arch bridge. Completed in 2002. Elegant in its way.
This is situated between two iron arch bridges of which the Dom Luís I Bridge is the first. The second I’ll come on to in a later post.
You can find more images here.
Like the Infante D Henrique Bridge, the Freixo Bridge (Ponte do Freixo) carries road traffic. We saw it only from a distance as the boat had to turn back to make good time:-
There are more images of it here.