| LINE | Name | Country | City | Regional Rail | |||
| Northern Line Extension | UK | London | No | ||||
| CONSTRUCTION DETAILS | Start year | End year | Length (in km) | Tunnel (in km) | Tunnel | Stations | Source |
| 2015 | 2021 | 3.2 | 3.2 | 100% | 2 | Media | |
| COST INFORMATION | Cost (in M) | Currency | PPP rate | Year PPP | Real cost (in M$) | Cost/km (in M$) | Source |
| 1200.0 | GBP | 1.47 | 2017 | 1764.0 | 551.2 | Media | |
| REFERENCE | http://www.cityam.com/257486/full-steam-ahead-tunnelling-12bn-northern-line-extension | ||||||
| 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 London city page. | |||||||
