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Construction of the "Ponte Maria Pia" in Porto [Portugal]
[Construção da "Ponte Maria Pia", no Porto]
1877, 24 June
Private collection of Manuel Magalhaes
The Ponte Maria Pia is a railway bridge built by Gustave Eiffel in Porto, Portugal. Construction started on 5 January 1876 and completed on 4 November 1877. At the time of construction it was the longest arch bridge in the world at 160m.