Tunnel boring set to begin for Coxwell Bypass Tunnel to improve quality of #Toronto's waterways.
The City of Toronto is investing more than $3 billion to keep combined sewer overflows out of our waterways, improving water quality in the Don River and along the central waterfront of Lake Ontario.

The tunnel boring machine (TBM), named Donnie, will dig the 6.3-meter diameter and 10.5-kilometer long Coxwell Bypass Tunnel, approximately 50 metres deep, parallel to the Don River.

The Coxwell Bypass Tunnel is an important part of the overall Don River & Central Waterfront (DR&CW) project. This tunnel will capture, store and transport combined sewer overflows, a mix of rainwater and sewage, for treatment at the Ashbridges Bay Treatment Plant.

https://www.newswire.ca/news-releases/cleaning-up-our-waterways-tunnel-boring-set-to-begin-for-coxwell-bypass-tunnel-to-improve-quality-of-toronto-s-waterways-817210109.html