Dom Luís I Bridge

The bridge is a historic steel arch structure completed and officially opened in 1886. It features two levels: the upper deck carries metro and pedestrian traffic, while the lower deck accommodates vehicles and pedestrians. Designed by Théophile Seyrig and Léopold Valentin, it is recognized for its impressive engineering and architectural qualities.

This double-deck bridge stands approximately 45 meters tall and spans the Douro River, connecting two urban areas. It is a designated UNESCO World Heritage Site, reflecting its cultural and historical significance. The bridge serves both functional transportation roles and as a viewpoint offering panoramic views of the surrounding cityscape.

The bridge is wheelchair accessible and supports pedestrian and bus traffic, making it an important infrastructure element as well as a cultural landmark. Its metal arch design and industrial heritage contribute to its status as an iconic symbol of engineering and architectural achievement from the 19th century.