The Salah Bey Viaduct, is a cable-stayed bridge that spans the gorge valley of the Rhumel River in Constantine, North East Algeria is named after Salah Bey whose rule of the city (1771-1792) was marked by major urban works, This viaduct is already considered the "eighth wonder" of the city with seven bridges. With a length of 1119m, the viaduct has a futuristic design, which modernized the urban configuration of the city.