| LINE | Name | Country | City | Regional Rail | |||
| Chamartin-Atocha tunnel | ES | Madrid | Yes | ||||
| CONSTRUCTION DETAILS | Start year | End year | Length (in km) | Tunnel (in km) | Tunnel | Stations | Source |
| 2003 | 2008 | 7.5 | 7.5 | 100% | 3 | Wiki | |
| COST INFORMATION | Cost (in M) | Currency | PPP rate | Year PPP | Real cost (in M$) | Cost/km (in M$) | Source |
| 550.0 | EUR | 1.25 | 2006 | 687.5 | 91.7 | Media | |
| REFERENCE | https://elpais.com/elpais/2008/07/09/actualidad/1215591420_850215.html | ||||||
| NOTES | Sections of the line constructed in trench are represented with the same line style as the at-grade sections. The project maps are based on information retrieved from OpenStreetMap and our research. Please contact us if you have more accurate information regarding this project. |
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| Go to Madrid city page. | |||||||
