to the Kamen Cross required in the area of the crossing of the Lippe and Datteln-Hamm-channel an increase of the roadway to absorb possible subsidence, which occurred at times of mining in the Ruhr area again and again. The Werne colliery was located in the immediate vicinity of the motorway Werner district Stockum. The section Bremen-Bremen / Brinkum 1963 was opened to traffic, a year later, in 1964, the sequel to Delmenhorst. In 1965, a section at Wildeshausen and the section from Münster to the Kamener Cross was completed. 1966 was the highway after release of two further sections west and east of Wildeshausen from Bremen already to Cloppenburg consistently passable, 1967 to Holdorf. The complete gap closure to Münster was completed in 1968. The section between the Kamen Cross and the cross Dortmund / Unna was completed in 1957. The already started before the war section Wermelskirchen-Remscheid by the Bergisches Land was further built from 1951 and was handed over to the operation on 15 July 1953. Hagen was reached in 1956. In 1961, finally, the gap of the motorway on this section between Dortmund / Unna and Hagen was closed. This section of the motorway is also called Ruhrtangente. Northern part The northern part of the Cologne motorway ring was planned as 17.8 km long northern bypass Cologne from the 1960s to relieve the Heumarer triangle and the Rodenkirchen bridge and close the ring road around Cologne. Also here already existed in the 1930s planning for a closed motorway ring around Cologne. These were also largely implemented for the ring closure in the 1960s. The plan approval decision was issued in 1961 in three parts (left bank section, right bank section, Rhine bridge). The 1061 m long Rhine bridge Leverkusen as well as the two highways on Leverkusen city area were thereby equipped with wider side stripes to allow a later expansion to six lanes. A special feature in the German motorway network is that the highway between the cross Leverkusen and the junction Cologne-Niehl - as well as the A 3 - was equipped with street lighting in the form of a fairy lights and subsequent single lamps. In 1965, the A 1 was completely passable in this area, in 1968 with the completion of the section Holdorf-Münster then complete from Lübeck to Cologne-West. The realization of the already planned before the war route between Daun and