Hessen Mobil is conducting routine cleaning and technical tests – detours have been set up.
Ober-Ramstadt. Due to routine maintenance and cleaning work, the Lohberg Tunnel on the B 426 will be completely closed next week from Monday, November 10th, to Friday, November 14th, 2025 , each night from 8 pm to 5 am .
During the nightly closures, Hessen Mobil carrying out cleaning work, technical maintenance, and functional tests on the tunnel system. Traffic will be diverted via a wide detour during this time.
- Towards Darmstadt: via the B 449
- Towards Ober-Ramstadt: via Waschenbach (K 138) , Frankenhausen (K 137) and Nieder-Modau (L 3099)
The Lohberg tunnel remains open to traffic during the day.
Further information on current projects and measures can be found on the Hessen Mobil
(PM/HM)
