The K was built in 1930 and rebuilt 1958 to 1960. Consists of prestressed concrete, is 86 m long, 20 m wide and has an area of 1688 m². The bridge rests on four rows of pillars, where the two inner rows of steel and the outer two are made of concrete. About the k. four lanes of traffic and two sidewalks some two biking trails run (the bridge widens at both ends). Four about 15 m-high lamps located on the K.. The bridge is named after the architect of Georg Wenzeslaus von Knobelsdorff.<br><br>Source: <a href="http://www.berlingeschichte.de" target="_blank">www.berlingeschichte.de</a>