Before Christmas, the Gran Sasso tunnel closes for three nights for scheduled works. The days affected are 16, 17 and 18 December: from 10pm to 6am the following day, the western carriageway – towards L’Aquila/Rome – of the Colledara/San Gabriele-Assergi motorway section will be closed.
Gran Sasso tunnel, three nights of closures towards Rome. Here are the alternative routes
https://www.repubblica.it/cronaca/2024/12/14/news/gran_sasso_traforo_chiusure_alternative-423885991/?rss
