The Tagus Bridge was inaugurated in 1966, precisely 50 years ago. This work of art was a landmark of engineering in Portugal. Built by the United States Steel Export Company which was also responsible for the construction of the Golden Gate bridge in San Francisco, it was completed ahead of schedule and at lower costs than expected.
At the time of its inauguration it was the fifth largest suspension bridge in the world and the largest outside the United States. Today, this iron-road bridge is a fundamental element in the mobility of the inhabitants of the two banks, being used daily by about 300 thousand people.