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Infrastructure

Stuttgart nears completion of B10 Leuze junction project worth €500m

· Transport / road

Location
Stuttgart, Baden-Württemberg · 🇩🇪 Germany
Project
B 10 road tunnel – Rosenstein Tunnel Stuttgart incl. Leuze junction
Investment
around €495.5 million (as of March 2025); press reports cite "just under €500 million" (as of September 2025) – original 2010 estimate: €193.5 million
Status
Rosenstein tunnel operational since 26 March 2022; overall Leuze junction project targeted for completion in spring 2026 per the timeline reported in autumn 2025

The B 10 Rosenstein tunnel beneath Rosenstein Park near the Wilhelma zoo has been open to traffic since 26 March 2022; the adjacent Leuze junction links the B 10 and B 14 federal roads and carries around 120,000 vehicles daily. According to Stuttgarter Zeitung and Stuttgarter Nachrichten (autumn 2025), the roughly €500 million overall project is due for final completion in spring 2026, after costs rose from an original 2010 estimate of about €193.5 million to €495.5 million most recently (March 2025).

Source: de.wikipedia.org ↗ · Archived copy ↗

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