Ponte Dom Luís I, Porto My definitive photo of the Dom Luis I bridge. Opened in 1886, designed by Théophile Seyrig (who was trained by Gustave Eiffel). The 2 storey iron bridge spans the River Douro at 45 metre high. Posted by Travel in Portugal on Sat, 21/12/2013 - 21:17 × Related images Porto Riverside Porto Beachfront from the Barra do Douro Bolsa Palace from Praca Infante Dom Henrique Rua de Azevedo De Albuquerque - Porto View up to Clerigos São Francisco Catacombs - Porto