B 33 Konstanz Westtangente (B 33 Constance west bypass)
Regierungspräsidium Freiburg, Neubauleitung Singen
Date of Completion
During the expansion of the B 33, the L 221 was planned as a northern bypass of the Wollmatingen district. The west tangent has a length of 2 km and leads with a 280-metre long crossing over the railway line Constance – Radolfzell. The line also passes under the Kindlebildstraße in Wollmatingen.
General drainage planning