Umbau B14-B311 Tuttlingen (conversion)
Regierungspräsidium Freiburg, Außenstelle Donaueschingen
Date of Completion
The overall construction project was divided into several sub-sections. The B311 and B14 were partly upgraded to two lanes to improve traffic flow. Traffic lights and a turbo roundabout, the Aesculap roundabout, were installed at the five junctions of the two federal roads. The construction measure extends over a length of 3.5 km.
General drainage planning
On-site construction supervision