Progress in B19 bridge construction: Sonthofen in traffic chaos!

Progress in B19 bridge construction: Sonthofen in traffic chaos!

Things are currently going well in Sonthofen in Oberallgäu: The replacement construction of the B19 bridge over the Iller is in full swing and the first construction phase is almost near completion. The measures are long overdue, because not only safety but also traffic flow in the region is at stake. Loud Mercury The first half of the bridge has already been put into operation as a temporary bypass. The construction of the two eastern carriageways will now be tackled in the coming weeks and months.

A cornerstone of the construction work: The old half of the bridge (towards the north) has been demolished since Pentecost. Dr. Christian Hocke from the Kempten State Building Authority emphasizes that this demolition will take place without blasting, which should be reassuring for many in an area with busy boat traffic on the Iller. But caution is still advised: boat traffic is closed in the construction area for several hundred meters, which means that inflatable boats and kayaks have to be temporarily taken out of the water.

Traffic routing and diversions

The construction project also has an impact on traffic flow. The Sonthofen-Süd exit from the south will remain closed for several months, which means that the Sonthofen Nord junction will become the main hub for motor vehicle traffic. Traffic from Oberstdorf heading north is particularly affected by the diversions and has to be diverted via Rubi, Schöllang and Altstädten. The B19 is still accessible in the south direction, where the diversions do not apply.

Demolition work on the dilapidated existing bridges began on June 10, 2025 and will result in a complete closure of the junction ramp by June 21, 2025. Here, too, safety is the top priority: the conditions in the area of ​​the structure to be demolished are life-threatening for boaters and swimmers.

Background of the construction work

The construction of the new bridge is part of a broader strategy to improve the infrastructure and highlights the urgent need for investment compared to Germany. As the daily news reports, many bridge construction projects in Germany are lagging behind in international comparison. Despite the need for faster planning processes, progress is often slow.

This poses challenges for those responsible, as there are always concerns about security and the legal framework, which often lead to delays. Dr. Hocke is available as a contact person for questions about the new building and the associated traffic situation.