| LINE | Name | Country | City | Regional Rail | |||
| Green Line Extension | US | Boston | No | ||||
| CONSTRUCTION DETAILS | Start year | End year | Length (in km) | Tunnel (in km) | Tunnel | Stations | Source |
| 2013 | 2022 | 7.6 | 0.0 | 0% | 7** | Plan | |
| COST INFORMATION | Cost (in M) | Currency | PPP rate | Year PPP | Real cost (in M$) | Cost/km (in M$) | Source |
| 2,289.0*** | USD | 1.0 | 2020 | 2,396.5 | 315.3 | Plan | |
| REFERENCE | https://www.ctps.org/data/pdf/plans/TIP/FFYs-2020-2024-Final-TIP-20190730.pdf | ||||||
| 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. * It’s in the same right-of-way as a commuter line so it can plausibly be 1 and not 0. ** Only 6 new stops, but Lechmere is rebuilt, so 7. *** Including rolling stock, which is $118 million per https://www.railwaygazette.com/long-reads/boston-building-a-better-t/55983.article, for a total balance of 2,182. |
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| Go to Boston city page. | |||||||
