Bavaria starts construction of the Auerberg tunnel for the B2neu

On 16 July 2026 the breaking-ground ceremony was held for the roughly 1.9 km twin-tube Auerberg tunnel — the centrepiece of the four-lane expansion of the B2neu between Eschenlohe and Oberau-Nord (a roughly 3.75 km section) on the Munich–Garmisch-Partenkirchen–Austria corridor. Total cost is around €237 million; the tunnel breakthrough is scheduled for August 2029 and completion of the section by 2032 (client: Autobahn GmbH des Bundes / Weilheim state building authority; second source: StBA Weilheim). Tunnelling ceremony on 16 Jul 2026. The date is a placeholder: only completion of the section by 2032 is given.