| 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 | 1648.1 | Media | |
| REFERENCE | https://www.nytimes.com/2016/12/19/nyregion/second-avenue-subway-opening.html | ||||||
