Construction site chaos in Schleswig-Holstein: Important information for drivers!
Find out the latest information about construction sites and traffic closures in Norderstedt and Schleswig-Holstein on September 10, 2025.

Construction site chaos in Schleswig-Holstein: Important information for drivers!
Today, Schleswig-Holstein is all about construction sites and closures, like kn online reported. The transport infrastructure in the state, which covers a total of 9,874,557 kilometers, is currently being redesigned for various reasons. Motorways, federal highways, country roads and district roads are equally affected. The current work can have a significant impact on traffic and create heroism on the roads.
Special diversions and closures are in place on various routes. This is how it is done on theA1Traffic reallocations and construction work are expected between Eutin and Scharbeutz by the end of 2025. Two-lane traffic has also been in place in the area of the Bargteheide motorway junction for months and will remain in place until December. For a new bridge to be built, the A21 will be closed from September 16th to 19th and again from September 23rd to 26th, 2025 between 7 p.m. and 5 a.m.
Current construction sites on the highways
Also on theA7some construction work. The Flensburg/Harrislee exit to the south will be closed at night until September 11, 2025, followed by further closures to the north until September 12, 2025. There will also be extensive closures between the Owschlag and Schleswig/Schuby junctions until October 23, 2025.
On theA20There will be a complete closure between Lübeck and Lübeck-Genin from September 12th to 15th and September 19th to 22nd, 2025. Roadway renovations are currently underwayA21between Leezen and Bad Oldesloe-Nord until December 2026. For theA23Several connection points will be closed until the end of October or November 2025.
Federal and state roads in trouble
But it's not just motorway drivers who have to be patient. TheB77The Rendsburg Canal Tunnel will be closed for maintenance work on September 12th and 13th and November 7th and 8th, 2025. It's similar with theB199which is expected to be renovated by today. Those tooB502is only accessible to a limited extent between Heikendorf and Schönkirchen until September 21, 2025.
For theL26There will be a closure between Klein Waabs and Karlsminde until November 11, 2025. On theL50There will also be nothing available between the B502 and the L211 near Schönberg until the end of September 2025.
Planned restrictions and additional security
How verkehrslage.de noted, there is currently no danger from mobile speed cameras or other types of danger in the entire state. However, preparations for the construction work are necessary to ensure both road safety and to improve the condition of the roads in the long term. One or another hindrance could arise due to objects on the road, poor visibility or similar challenges.
Be careful when you're out and about - despite the construction work, safety should always be a priority here. Adhere to detours and give workers space to complete their jobs quickly and safely. So stay relaxed and plan enough time for your journeys - the construction sites require a certain amount of patience these days!