Adolphe Bridge

The Adolphe Bridge spans the Pétrusse valley in Luxembourg City, connecting the historic Ville Haute with the modern Bourbon Plateau. Its twin 84.65-metre sandstone arches rise above the river, carrying a road deck above and a cycle path below. The bridge was completed in 1903 and named after Grand Duke Adolphe, who ruled from 1890 to 1905. Designed by French engineer Paul Séjourné and Luxembourger Albert Rodange, it once carried trams and trains before becoming a road bridge. Locals still call it the New Bridge, contrasting it with the older Passerelle viaduct nearby. The bridge is one of the city’s most visited sights and a symbol of Luxembourg’s independence. Its bold design featured the world’s largest stone arch when built, using reinforced concrete and local sandstone. Séjourné’s innovative approach influenced bridges in France and the United States. After a century of use, the arches were reinforced with steel bars to support heavier loads. In 2018, a lower deck was added for cyclists and pedestrians, widening the structure without altering its historic appearance. Visitors walk along the upper deck with views over the Pétrusse valley and the city’s rooftops. The lower deck offers a quieter route for cyclists, separated from traffic. Sandstone columns and arches frame the space, while sloped ramps and staircases provide easy access at both ends. The bridge’s massive central span dominates the skyline, a reminder of early 20th-century engineering. Its blend of grandeur and practicality makes it a landmark worth seeing.