The Roads Administration carries out two such campaigns each year, in spring and autumn. The purpose of the operation, says the government in a press release, is “preventive and curative”, specifically for the safety of equipment. However, it will also oversee the cleaning of tunnel walls, cameras and signalling equipment.
With the aim of reducing the impact on traffic, the maintenance and cleaning of tunnels is to be carried out at night, except for the Markusberg tunnel.
The following tunnels will be affected:
Tunnel Pénétrante Sud
Tunnel Richard Serra
Tunnel Saint-Esprit
Tunnel Stafelter
Tunnel Grouft
Tunnel Howald
Tunnel Cents
Tunnel Frisange
Tunnel Mondorf
Tunnel Markusberg
Tunnel Aessen
Tunnel Colmar-Berg
Tunnel Schieren
Tunnel Micheville
Tunnel Mersch
Tunnel Gousselberg
Tunnel Rond-Point Merl
Tunnel Pétange
Tunnel Biff
Wildlife crossing Rouscht
Tunnel Ehlerange
Tunnel Kirchberg
The planned dates for the different tunnels can be consulted on the CITA website www.cita.lu.