Seven new stops planned for the MBTA Green Line, some of which were planned to be up and running next year, won’t open until at least 2021.
Project manager John Dalton said the rising costs are pushing the project back. The extension is now expected to cost $2.3 billion.
The original plan was to have Union Square and Washington Street stations open by 2017, and the rest open in 2020.
The project will extend the Green Line nearly five miles and end at College Avenue in Medford, Massachusetts.