South Bridge is a road bridge and street in Edinburgh, Scotland, between the High Street, where it meets the North Bridge, to Nicolson Street at the south. It forms a continuous roadway over the steep valley scoured parallel to the High Street when the crag and tail landscape of the city was formed. The bridge dips down from the High Street to the Cowgate, which run…South Bridge is a road bridge and street in Edinburgh, Scotland, between the High Street, where it meets the North Bridge, to Nicolson Street at the south. It forms a continuous roadway over the steep valley scoured parallel to the High Street when the crag and tail landscape of the city was formed. The bridge dips down from the High Street to the Cowgate, which runs under the largest arch of the bridge, before climbing back up to its terminus at Nicolson Street.