Soundproofing measures for entry and exit ramps at the west portal, Karlstor, Ettlinger Tor and east portal of the road tunnel in the war street.

The following services are part of the construction project. However, they do not represent the entire range of services:

Manufacture of noise barriers / noise front shells at the entry and exit ramps of the Kriegsstrasse tunnel in Karlsruhe.

These are the entry and exit ramps of the Warstrasse (west portal), Karlstor, Ettlinger Tor and Ludwig-Erhard-Allee (east portal).