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Traffic chaos in North Rhine-Westphalia: Massive construction sites until 2026 will cause traffic jams!
Traffic warning for Lindenthal: Construction sites will affect traffic on the A4 until July 2026. Find out the details here.
Traffic chaos in North Rhine-Westphalia: Massive construction sites until 2026 will cause traffic jams!
The traffic situation in the Cologne area will remain tense in the near future. Since September 30, 2023 and probably until July 12, 2026, drivers on the A4 have had to accept significant restrictions. Loud news.de Commuters traveling to Cologne from directions such as Frechen and Kerpen in particular have to expect slow traffic.
The construction work primarily affects the section between Frechen and the Kerpen motorway junction. A new junction is being built here, which will provide important relief for traffic. However, until completion, traffic will be limited to a maximum speed of 80 km/h. The main construction sites include:
- A4, Frechen – AK Kerpen (Richtung Heerlen/Aachen) – Neubau einer Anschlussstelle (1,28 km), bis 31. Dezember 2025.
- A4, AK Kerpen – Frechen (Richtung Köln) – Neubau einer Anschlussstelle (1,31 km), ebenfalls bis 31. Dezember 2025.
- Sperrungen für Brückenneubauten zwischen 10. und 12. Juli 2026, die weite Teile des Verkehrs beeinträchtigen werden.
Processes and other construction sites
To illustrate the problem of traffic jams and narrowed lanes: Several construction works are already underway on the A4 towards Cologne, such as between the Molbach and Wiehl valley bridges. The right lane is closed and the passage is narrowed to one lane. These measures are expected to last until December 1, 2034, significantly impacting traffic flow, it said verkehrslage.de.
In addition, the bridge work between the Cologne-West intersection and Cologne-Klettenberg is planned until May 31, 2027. This is also reflected in the increasing number of traffic jams that the ADAC has observed in North Rhine-Westphalia. In April 2025, there was a 26 percent increase in traffic jam length compared to the previous year, highlighting the pressure on the already heavily stressed road network WDR.
Frank Schewe from the WDR-V traffic studio points out that the traffic density and high commuter traffic in North Rhine-Westphalia lead to constant challenges. Most traffic jams are not only due to construction sites, but also to the wear and tear on the roads, which forces repairs and new construction due to high traffic. Planning construction work is crucial in order not to burden traffic unnecessarily.
The coming months will not only bring the challenge of new construction sites, but also the need for short and medium-term measures to maintain traffic flow as well as possible. With skillful planning and coordination, one can hope to keep the disruption to the population and traffic in Cologne and the surrounding area within limits.