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Construction site chaos in Cologne: Expect traffic jams on the A3 and A4 from July 4th!
Traffic restrictions in Cologne-Merheim: A4 construction site from July 4th to 5th, 2025, increased risk of traffic jams on A3 and A4.
Construction site chaos in Cologne: Expect traffic jams on the A3 and A4 from July 4th!
From tomorrow, July 4, 2025, there will be noticeable traffic restrictions on the A3 and A4 motorways around Cologne. These will be built in the Cologne-Kalk area, specifically between the Cologne-Heumar motorway junction and the Cologne-Merheim junction. Roadworks will begin at 7:00 p.m. and are expected to end at 5:00 a.m. on July 5th. If you want to hit the streets early in the morning, you should keep the construction site in mind. According to [news.de]. There are plans to resurface the roadway, which means two right lanes will be closed and traffic will be narrowed to one lane.
These restrictions are not the only ones that affect the traffic situation in Cologne. As verkehrslage.de reports, there are several construction sites and bridge work on the A3 around Cologne. This work is also scheduled to be completed by the end of 2026 and will result in traffic being routed over the oncoming lane. The area between the Hilden Cross and the Stinderhof rest area as well as the stretch between the Stindertal rest area and the Hilden Cross are particularly affected.
Expected traffic jams and detours
The likelihood of increased traffic volumes, particularly during peak hours, is exceptionally high. If you don't want to be patient, you should look for alternatives or, if necessary, consider public transport. The dashboard from autobahn.de offers a current overview of the traffic situation, traffic jams and the number of construction sites on the motorways. This way you can quickly get an overview and adjust the route if necessary.
The traffic centers constantly monitor the situation on the motorways and have pre-coordinated action strategies in place in order to be able to react to unforeseen disruptions. Anyone planning to drive from Cologne to other regions should keep this in mind and also find out about possible diversions.
In summary
- Baustelle: A4, AD Köln-Heumar (15) – AS Köln-Merheim (17), Richtung Olpe
- Zeitraum: 04. Juli 2025, 19:00 Uhr bis 05. Juli 2025, 05:00 Uhr
- Fahrbahnerneuerung: 2 rechte Fahrstreifen gesperrt, Verkehr verengt auf einen Fahrstreifen
- Erhöhtes Verkehrsaufkommen: Staugefahr in der Umgebung
Armed with this information, drivers can plan better and confidently survive the traffic in Cologne. It remains to be hoped that the work will be completed quickly and traffic will flow more smoothly again soon.