Green Line Update - March 2019

Green Line Update - Building the tunnel and future stages

Published Thursday, March 21, 2019 5:00 pm
by The City of Calgary

On Wednesday, March 20, the Green Line team presented the first quarterly update of 2019 to City Council’s Transportation & Transit Committee. The team provided a project update and highlighted two important items currently being worked on: construction method for the Centre City/Beltline tunnel and an analysis of future Green Line stages.

Building the tunnel
The Green Line team is currently reviewing two different construction methods to build the 4 kilometer Green Line tunnel through the downtown core and Beltline, single bore and twin bore
 
We’re working to gain a complete understanding of the Single Bore Tunnel design to allow for comparison with the Twin Bore Tunnel design. Comparing the tunnelling options is necessary to provide a fair evaluation between the two options to ensure the best value and long-term operations of the LRT.

Future Stages Analysis
In May 2017, Green Line administration presented the recommended Stage 1 (16 Avenue N. to 126 Avenue S.E.), which involves building the most technically complex piece of the project first, while offering the best opportunities for expansion in the future.
 
Now, we’re exploring different potential extension options that are operationally viable and ready as funding becomes available. This will be discussed further at a Transportation & Transit Committee meeting in Q3 through Calgary’s Route Ahead, where transit projects will be prioritized.
 
You can read the full update to Council here.

Current Green Line Consruction

Don’t forget to keep visiting Calgary.ca/GreenLine for the latest information on Green Line construction.
 
The City has begun Green Line construction to prepare the right of way for the main construction of track and stations. These ongoing construction projects include things like land preparation and utility relocation.
 
For the latest project news and other opportunities to get involved, visit Calgary.ca/GreenLine. Follow the Green Line story on Twitter @yyctransport #GreenLineYYC or email greenline@calgary.ca for further questions.