B12 between Kempten and Buchloe: Court delays four-lane expansion!
Kempten is planning to widen the B12 to four lanes by February 2027, but ongoing legal proceedings are delaying the start of the project.

B12 between Kempten and Buchloe: Court delays four-lane expansion!
The B12 between Kempten and Buchloe is about to undergo significant reconstruction. According to current plans, a four-lane expansion of the busy federal highway is scheduled to begin in February 2027. This measure is not only necessary, but also a response to the tense traffic situation, which has to cope with around 20,000 vehicles every day Augsburger Allgemeine reported.
The expansion is described as a mammoth project that will primarily benefit commuters, holidaymakers and truck drivers. In the 1980s, the B12 was known as the “death route” due to the high number of accidents, which underlines the urgency of the project. The Kempten state building authority is doing everything it can to complete the start of the construction project on time, but also had to struggle with difficulties. Because ongoing legal proceedings could jeopardize the achievement of the goal. As the Allgäu newspaper reported, no major progress in the process is expected in the current year. Those involved in the proceedings can still exchange arguments in writing, but the date for the oral hearing is still pending.
Investments in infrastructure
The planned expansion is part of a broad initiative by the federal government to invest massively in transport infrastructure. A total of 169 billion euros are planned for transport projects by 2029, including over 14 billion euros for new federal roads and motorways. This shows how important a functioning infrastructure is in Germany. Investments in roads, bridges and railways are a top priority. Those too Federal Government has stated that money will be made available for the maintenance and modernization of existing transport routes. The principle of “maintenance before new construction” is in the foreground, but new projects such as the B12 expansion are also on the agenda.
The B12 therefore remains a central element of transport policy in Bavaria. The upcoming four-lane expansion will not only increase safety, but also allow traffic volumes to be managed better in the future, which ultimately benefits all road users. We can only hope that the legal proceedings can be concluded soon and that the plans do not come to a standstill.