B12 expansion: Kempten State Building Authority is picking up speed. A continuous four-lane cross-section with a total width of 28 meters is planned.
Average daily traffic volume of around 27,000 vehicles is expected by 2035. There are even 32,400 vehicles expected between the Kaufbeuren/Germaringen junction. With at least two thirds of bridges, it can be assumed that the existing structures need to be replaced. Drainage systems are currently investigating where noise protection measures are necessary.