
The Bridges and Roads Authority has announced that work will begin on 2 September 2024, starting with the Gousselerbierg tunnel on the A7.
The scheduled maintenance includes preventive work on safety equipment, replacing defective components, conducting tests, and thoroughly cleaning the tunnels. To minimise disruption to traffic, the work will primarily take place at night.
The following tunnels and wildlife crossings will be affected:
Grouft, Rëngelbour, Stafelter, Gousselerbierg, Mersch, Roost, Colmar-Berg, Schieren, Howald, Cents, Richard Serra, Kirchberg, Saint-Esprit, Pénétrante Sud, Merl, Pétange-Église, Biff, Accès-Secondaire in Esch-Belval, Micheville, Aessen, Ehlerange, Foetz, Frisange, Mondorf, and Markusberg.
| Road | Tunnel | Start | End | Time of day | Traffic flow | Type of intervention |
| A7 | Gousselerbierg | 02.09.2024 | 06.09.2024 | Night | Roadblock with diversion | Maintenance |
| A7 | Mersch | 09.09.2024 | 11.09.2024 | Night | Roadblock with diversion | Maintenance |
| B3 | Pénétrante Sud | 11.09.2024 | 12.09.2024 | Night | Roadblock with diversion | Maintenance |
| A13 | Frisange | 12.09.2024 | 13.09.2024 | Night | Roadblock with diversion | Maintenance |
| A13 | Mondorf | 16.09.2024 | 18.09.2024 | Night | Roadblock with diversion | Maintenance |
| A13 | Ehlerange + Aessen | 18.09.2024 | 20.09.2024 | Night | Roadblock with diversion | Maintenance |
| A1 | Howald | 23.09.2024 | 25.09.2024 | Night | Bidirectional | Maintenance |
| A1 | Cents | 25.09.2024 | 27.09.2024 | Night | Roadblock with diversion | Maintenance |
| N51 | Richard Serra | 26.09.2024 | 27.09.2024 | Night | Roadblock with diversion | Maintenance |
| N51 | Kirchberg | 26.09.2024 | 27.09.2024 | Night | Roadblock with diversion | Maintenance |
| A7 | Colmar-Berg + Schieren | 30.09.2024 | 30.09.2024 | Day | Roadblock with diversion | Maintenance |
| A13 | Markusberg | 01.10.2024 | 05.10.2024 | Day and night | Bidirectional | Maintenance |
| A7 | Stafelter | 07.10.2024 | 11.10.2024 | Night | Roadblock with diversion | Maintenance |
| A7 | Grouft | 14.10.2024 | 18.10.2024 | Night | Roadblock with diversion | Maintenance |
| B40 | Micheville | 14.10.2024 | 15.10.2024 | Night | Roadblock with diversion | Cleaning |
| A7 | Colmar-Berg + Schieren | 14.10.2024 | 15.10.2024 | Night | Roadblock with diversion | Cleaning |
| A13 | Aessen | 14.10.2024 | 15.10.2024 | Night | Roadblock with diversion | Cleaning |
| A1 | Howald + Cents | 15.10.2024 | 16.10.2024 | Night | Roadblock with diversion | Cleaning |
| B3 | Pénétrante Sud | 16.10.2024 | 17.10.2024 | Night | Roadblock with diversion | Cleaning |
| N51 | Richard Serra | 16.10.2024 | 17.10.2024 | Night | Roadblock with diversion | Cleaning |
| N57 | Saint-Esprit | 16.10.2024 | 17.10.2024 | Night | Roadblock with diversion | Cleaning |
| A7 | Stafelter + Grouft | 17.10.2024 | 18.10.2024 | Night | Roadblock with diversion | Cleaning |
| A13 | Markusberg | 18.10.2024 | 19.10.2024 | Night | Bidirectional | Cleaning |
| A7 | Grouft | 21.10.2024 | 22.10.2024 | Night | Roadblock with diversion | Maintenance |
| A7 | Stafelter + Grouft | 21.10.2024 | 22.10.2024 | Night | Roadblock with diversion | Cleaning |
| B40 | Micheville | 22.10.2024 | 24.10.2024 | Night | Roadblock with diversion | Maintenance |
| A7/N7 | Mersch + Gousselerbierg | 22.10.2024 | 24.10.2024 | Night | Roadblock with diversion | Cleaning |
| N57 | Saint-Esprit | 24.10.2024 | 25.10.2024 | Night | Roadblock with diversion | Maintenance |
| A1 | Howald + Cents | 24.10.2024 | 25.10.2024 | Night | Roadblock with diversion | Cleaning |
| A13 | Frisange | 24.10.2024 | 25.10.2024 | Night | Roadblock with diversion | Cleaning |
| A13 | Mondorf | 24.10.2024 | 25.10.2024 | Night | Mobile roadblock | Cleaning |
| N31/A13 | Pétange + Biff | 28.10.2024 | 29.10.2024 | Night | Roadblock with diversion | Maintenance |
| CR191 | Accès-Secondaire | 30.10.2024 | 30.10.2024 | Day | Roadblock with diversion | Maintenance |
| A4 | Merl roundabout | 31.10.2024 | 31.10.2024 | Day | Roadblock with diversion | Maintenance |