Boulevard Royal's route runs from the Côte d'Eich, in the north-east of Ville Haute, west-south-westwards for approximately 330 metres (1,000 ft), before taking a hard southward turn, whereupon it continues for 400 metres (1,200 ft). At the street's southern end, in the south-west corner of Ville Haute, it leads to the Adolphe Bridge, which takes road traffic across the Pétrusse to join Avenue de la Liberté.