Traffic jam alarm in Cologne: A4 closed due to construction work on June 11th!
On June 11, 2025, there will be traffic restrictions and traffic jams on the A4 near Cologne-Klettenberg due to construction work.

Traffic jam alarm in Cologne: A4 closed due to construction work on June 11th!
In Cologne there will be noticeable traffic restrictions on the A4 on June 11, 2025 news.de reported. The construction site measures are scheduled from 8 a.m. to 6 p.m. and will bring traffic in the direction of Cologne (Heerlen/Aachen) to a standstill between the Cologne-West intersection and Cologne-Klettenberg. Drivers should be prepared for increased traffic volumes and possible traffic jams.
The current traffic jam and traffic reports show that Cologne is already suffering from general traffic problems. Loud stau-a4.de There have been repeated closures of routes in the last few days, which could make the situation even more tense. There were several blocked time slots, particularly on June 8, 2025, which made getting to the construction site difficult. The list shows that numerous closures are in effect from early in the morning until lunchtime.
Traffic situation in the region
The traffic situation is a constant issue in North Rhine-Westphalia. According to the North Rhine-Westphalia State Statistical Office, the total road length in the state is 29,508 kilometers (as of January 1, 2024). With a vehicle population of 694 vehicles per 1,000 inhabitants, there is a high motorization rate of 580 passenger cars per 1,000 inhabitants. This leads to enormous pressure on the road infrastructure, which not least leads to a high number of traffic accidents - 79,601 were registered in 2024, including 62,741 with personal injuries and 485 fatalities.
The construction site on the A4 is not the only bottleneck. For some time now there have been numerous construction sites in the city area, which are causing further traffic disruptions. Mobility is an important concern for the citizens of Cologne, and despite all adversities, people strive to find a good way through the challenges of traffic.
Given the precarious situation in Cologne traffic, experts recommend planning alternative routes and forming carpools in order to reduce the number of individual vehicles. In many cases, public transport also offers a stress-free way to shorten travel time and avoid traffic jams.
The coming days will be crucial for many road users. It remains to be hoped that the construction sites will be completed quickly and efficiently so that mobility in Cologne will soon be safe and smooth again.
For current traffic information, it is advisable to regularly check the relevant channels.