Please use the materials below to learn more about the Purple Line Extension Tunnel Boring Machines (TBMs).
Fact Sheets
- Purple Line Extension Section 1 Infographic Fact Sheet
- Purple Line Extension Section 1 Tunneling Fact Sheet
- Purple Line Extension Section 2 Infographic Fact Sheet
- Purple Line Extension Section 2 Tunneling Fact Sheet
- Purple Line Extension Section 3 Infographic Fact Sheet
- Purple Line Extension Section 3 Tunneling Fact Sheet
- Purple Line Extension Section 3 Art Contest Flyer
- Purple Line Extension Section 3 Naming Contest Flyer
Follow the @PurpleLineTBMs on Twitter for weekly updates on their progress and more.