Ruhr (river) Ruhr (river) __notoc__ The Ruhr is a river in western Germany (North Rhine-Westphalia), a right tributary (east-side) of the Rhine. The source of the Ruhr is near the town of Winterberg in the mountainous Sauerland region, at an elevation of approximately 2,200 feet (670 m). It flows into the lower Rhine at an elevation of only 56 feet (17 m) in the municipal area of Duisburg. Its total length is , its average discharge is 79 m³/s (cubic metres per second) at Mülheim near its mouth. Thus, its discharge is, for example, comparable to that of the river Ems in
Duisburg Inner Harbour model of development in the Ruhr district was delivered in 1994 by the British architect Norman Foster. Since then, the Inner Harbor has transformed itself into a district combining employment, housing, culture and water-based leisure activities. Today, the Inner Harbour is both an industrial monument and a main stop on the Route der Industriekultur. It is also the world's largest inland port. Where the Inner Harbour is today, the Rhine flowed many centuries ago. Up until the 5th century, the boundary of the Roman Empire ran through this locality. During the Middle Ages a Frankish regal court was built on