"The 25 de Abril Bridge is a suspension bridge connecting the city of Lisbon, capital of Portugal, to the left bank of the Tagus river. It was inaugurated on August 6, 1966 and enlarged in 1999. It is often compared to the Golden Gate Bridge in San Francisco, USA, due to their similarities and same construction company."


"At the time of its completion, the bridge had the longest suspended span and the longest main span in Continental Europe, the world's longest continuous truss, and the world's deepest bridge foundation. It was the fifth largest suspension bridge in the world, the largest outside the USA. Today, it is the 17th largest suspension bridge in the world."

main span: 1013 m
length of side spans: 483 m
total length: 2 277 m
tower height: 190.5 m
clearance: 70 m
deck depth: 10.7 m

Original design: Steinman, Boynton, Gronquist & London
Wind tunnel testing: Rowan Williams Davies & Irwin Inc.
Construction engineering: T. Y. Lin International
Contractor: American Bridge Company
Cable steel supplier: Trenzas y Cables de Acero PSC, S.L.
Redesign: Steinman, Boynton, Gronquist & Birdsall
Renovation: Dillinger Stahlbau GmbH