Bordeaux–Dax high-speed line via Mont-de-Marsan in design studies
- Location
- Nouvelle-Aquitaine (Gironde and Landes departments: Mont-de-Marsan, Dax) · 🇫🇷 France
- Project
- Bordeaux–Dax high-speed line via Mont-de-Marsan (GPSO)
- Investment
- EUR 14.3 billion (2020 price basis) for Phase 1 of the overall GPSO/LN-SO project (Bordeaux–Toulouse and Bordeaux–Dax combined); the share for Bordeaux–Dax alone is not separately quantified
- Status
- In planning (preliminary design studies / avant-projet sommaire)
The planned Bordeaux–Dax new line is part of the Grand Projet Ferroviaire du Sud-Ouest (GPSO, now branded LN-SO) and is intended to connect Mont-de-Marsan (via a new station outside the town) and Dax to the high-speed network. According to the official project site ln-so.fr, the line is currently in the technical and environmental preliminary-design study phase (avant-projet sommaire), while accompanying works south of Bordeaux (AFSB) have, per Wikipedia, been under construction since 2023. Phase 1 (Bordeaux–Toulouse and Bordeaux–Dax combined) is budgeted at EUR 14.3 billion (40% state, 40% local authorities, 20% EU); Bordeaux–Dax commissioning is expected in the 2034–2037 window.
Source: ln-so.fr ↗ · Archived copy ↗
Evidence: one source · based on reports (not independently confirmed) · archived copy saved · How well sourced is Eurotrack?
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