Dom Luís I Bridge

The Dom Luís I Bridge is the structure that ties Porto's two riverbanks together, and walking across it is one of the simplest and best things to do in the city. It was designed by the engineer Théophile Seyrig, a former partner of Gustave Eiffel, and built by a Belgian company. The upper deck was inaugurated on 31 October 1886 and the lower deck followed the next year.

It is an iron, two-hinged arch with two decks of different lengths. The upper deck spans 395.25 metres between the high ground by the Serra do Pilar monastery in Vila Nova de Gaia and the old town near the cathedral. Motor traffic was removed in 2003 and since 2005 it has carried line D of the Porto Metro alongside pedestrians. The lower deck, 172 metres long, links the Ribeira quayside with the Gaia waterfront and reopened in 2023 after renovation, closed to general traffic.

Each deck gives a different experience. The upper level is the one for views: on one side the rooftops of the Ribeira tumble down to the river, on the other the port lodges line the Gaia bank, and on clear evenings it is a popular place to watch the sunset. Metro trains run along the centre of the deck, so keep to the walkways. The lower deck is the easy route between the two waterfronts and puts you at eye level with the rabelo boats and cruise boats on the Douro.

There is no charge to cross at any time. A good circuit is to walk over the upper deck from the cathedral side, head down to the Gaia riverfront for a port lodge or a drink, and return along the lower deck to the Ribeira. The Guindais funicular and the Gaia cable car both connect high and low levels nearby if you would rather not climb. Those uneasy with heights may prefer the lower crossing.

The bridge is part of the Historic Centre of Oporto UNESCO World Heritage Site, inscribed in 1996, and a national monument. São Bento station and the cathedral are a short walk from the upper deck, and the Jardim do Morro metro stop sits at its Gaia end.