| LINE | Name | Country | City | Regional Rail | |||
| Second Avenue Phase 1 | US | New York | No | ||||
| CONSTRUCTION DETAILS | Start year | End year | Length (in km) | Tunnel (in km) | Tunnel | Stations | Source |
| 2007 | 2016 | 2.7 | 2.7 | 100% | 3 | Measured | |
| COST INFORMATION | Cost (in M) | Currency | PPP rate | Year PPP | Real cost (in M$) | Cost/km (in M$) | Source |
| 4450.0* | USD | 1.0 | 2012 | 4450.0 | 1648.1 | Media | |
| REFERENCE | https://www.nytimes.com/2016/12/19/nyregion/second-avenue-subway-opening.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. * Sources vary on whether it’s $4.4, $4.45, or $4.5 billion, see e.g. the higher figure at https://gothamist.com/news/the-insanely-expensive-second-avenue-subway-explained. |
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