All railway projects
Stuttgart 21
Germany · Europe · Rail Upgrade
Under Construction VerifiedCapex: €14.50B
Project overview
Complete reorganisation of the Stuttgart rail node, converting the main station into an eight-track underground through-station. Includes 100 km of new tracks, 56 km of tunnel bores, airport connection and the Digital Node Stuttgart pilot project.
Type
Rail Upgrade
Country
Germany
Region
Europe
Status
testing commissioning
Investment
€14.50B
Contractors & suppliers
- Ed. Züblin AG (Strabag subsidiary)civil_works · Main station construction (PFA 1.1): access tunnels and platforms for 8-track underground through-station. €500M.
- ARGE ATCOST21 (PORR + Hinteregger + Östu-Stettin + Swietelsky)tunnelling · 9.5km Filder Tunnel connecting station to airport + Ober-/Untertürkheim connecting tunnels. 30km+ of tunnels, 32 connecting structures. TBM + NATM methods. Innovative anhydrite-resistant annular gap mortar (PORR patent).
- ARGE Züblin + Max Bögl + Strabagtunnelling · Airport tunnel and new-build line sections on Filder Plain. Final tunnel breakthrough Sep 2023 (56km total tunnelling programme complete).
- Impleniatunnelling · Albvorland tunnel construction.
- DB Projekt Stuttgart-Ulm GmbHproject_management · Dedicated DB subsidiary for project delivery. Co-financed by Bund, Land BW, City of Stuttgart, Verband Region Stuttgart, Flughafen Stuttgart. €9.79B budget (revised from original €4.5B).