The Luxembourg Highways Agency announced Monday that the biannual maintenance of motorway tunnels is now underway and will take place until late June 2016.
The maintenance process involves assessing safety equipment, testing the operation and interaction of various equipment and reporting alarms to CITA, as well as cleaning the tunnels' walls. Depending on the size and complexity of the tunnels and taking into account the impact on traffic and coordination with other sites, maintenance will be organised either overnight or spread over several days.
The list of tunnels and passages involved are the following:
Grouft; Rëngelbour; Stafelter, Gousselerbierg; Mersch; Roost; Colmar-Berg; Schieren, Howald; Cents; Richard Serra; Kirchberg; Saint-Esprit; Pénétrante Sud; Merl; Pétange-Eglise; Biff; Accès Secondaire; Aessen; Ehlerange; Foetz; Frisange; Mondorf and Markusberg.
The relatively new Grouft tunnel has been a particular source of concern over the last twelve months, having been subject to two false fire alarms in January alone.
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