The Kamener Kreuz was formerly a full cloverleaf interchange near Dortmund in

North Rhine-Westphalia North Rhine-Westphalia (german: Nordrhein-Westfalen, ; li, Noordrien-Wesfale ; nds, Noordrhien-Westfalen; ksh, Noodrhing-Wäßßfaale), commonly shortened to NRW (), is a state (''Land'') in Western Germany. With more than 18 million inha ...

Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...

where the

Autobahn The (; German plural ) is the federal controlled-access highway system in Germany. The official German term is (abbreviated ''BAB''), which translates as 'federal motorway'. The literal meaning of the word is 'Federal Auto(mobile) Track' ...

en A1 and A2 meet. It lies between the towns of

Kamen Kamen () is a town in North Rhine-Westphalia, Germany, in the district Unna. Geography Kamen is situated at the east end of the Ruhr area, approximately 10 km south-west of Hamm and 25 km north-east of Dortmund. Neighbouring cities ...

and Bergkamen in the west and the city of Hamm and the municipality Bönen in the east. The Kamener Kreuz, opened in 1937, was the second interchange between two Reichsautobahnen, the first one being the Schkeuditzer Kreuz. It is used by 160,000 vehicles per day. Between 2006 and 2009, the Kamener Kreuz was renovated and upgraded to three lanes in each direction. This required to replace the old A1 bridge by a new one. Additionally, an overfly ramp from A2-East (Hannover) to A1-South (Cologne) was built, so the interchange had no longer the shape of a classic cloverleaf. The portion of the A1 between the Kamener Kreuz and Dreieck Erfttal is traditionally one of the most congested sections of Autobahn in Germany.

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Autobahns in Germany Road interchanges in Germany Roads in North Rhine-Westphalia {{Germany-road-stub