| LINE | Name | Country | City | Regional Rail | |||
| Line 3 extension (Third Stage) | BG | Sofia | No | ||||
| CONSTRUCTION DETAILS | Start year | End year | Length (in km) | Tunnel (in km) | Tunnel | Stations | Source |
| 2021 | 3.1 | 3.1 | 100% | 4* | Plan | ||
| COST INFORMATION | Cost (in M) | Currency | PPP rate | Year PPP | Real cost (in M$) | Cost/km (in M$) | Source |
| 112.5 | EUR | 3.32 | 2021 | 373.5 | 120.5 | Trade | |
| REFERENCE | https://seenews.com/news/sofia-opens-1125-mln-euro-tender-for-subway-expansion-681553 | ||||||
| NOTES | The ‘Real cost’ values have been adjusted for inflation and PPP. 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. * Sources disagree on 3 vs. 4 but the map clearly shows 4: https://www.metropolitan.bg/en/op-transport-extension/istoriya-razvitie-metro/line-3-sofia-metro |
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| Go to Sofia city page. | |||||||
