Construction site on the A1: Danger of traffic jams near Weilerswist on November 11th!

Construction site on the A1: Danger of traffic jams near Weilerswist on November 11th!

When traffic comes to a standstill in the North Rhine-Westphalia region, it often means there is a construction site on the A1! On November 11, 2025, things will get serious between Weilerswist and Euskirchen. The left lane will be closed from 6:00 a.m. to 3:00 p.m., which could significantly slow down drivers on the Cologne route towards Euskirchen. The roadway is narrowed to one lane, which increases the traffic load and often leads to temporary traffic jams. The information on this comes from the central traffic management office of the NRW State Road Construction Office and is a clear message: Anyone traveling on the A1 that day should be prepared for longer travel times.

The A1 is one of the most prominent motorways in Germany and attracts around 77,400 vehicles every day. In the coming years, this traffic will increase even further, with predictions of over 80,000 vehicles per day in a decade. This third-longest motorway in Germany stretches over almost 750 kilometers and connects places from Heiligenhafen in Schleswig-Holstein to Saarbrücken in Saarland. With its construction, which began in 1934, the A1 not only created an important traffic axis, but also a piece of history. stau-a1.de highlights that the motorway is also known as the “Vogelfluglinie” and “Eifelautobahn”.

A view of the construction site

The upcoming construction site will take place in a section between the Oberste Heide rest area and Euskirchen. This measure is part of a larger road renewal project. Meticulous work is being done to improve safety and ride quality, although in the short term this comes at a small cost to drivers. Therefore, patience is required while the gaps and damage are repaired.

Current construction sites on the A1 are not an isolated case. Away from the restricted lanes, challenges were already noticeable on the Leverkusen Rhine bridge, which is on everyone's lips because of its suboptimal conditions, such as speed limits of 60 km/h.

Traffic management and forecasting

The work on the highways is necessary not only to maintain the infrastructure but also to cope with the continuous increase in traffic. An ambitious project is the closing of a 28 kilometer long gap between Trier and Cologne, which is planned for 400 million euros. However, it remains unclear when construction work will start. In addition, extensive expansion work is currently underway north of Osnabrück, expanding the A1 from four to six lanes.

We are therefore facing important times for the A1, bringing with it both challenges and progress in a busy transport network. The upcoming measures could have a significant impact on traffic in the coming years - not just in neighboring Cologne, but for all travelers who regularly travel on this motorway. So if you're stuck in the middle of traffic, don't lose your nerve - there's always a way to the next construction site!

For further information about the traffic situation on the A1, it is also worth taking a look at this Website.