Ashbridges Bay Treatment Plant Outfall project featured on season finale of new show

The City of Toronto, Hatch, and Southland Holdings play host to provide viewers with a front-row seat to the largest wastewater outfall in Canada

October 21, 2021


A 7-meter-diameter, 3.5-kilometer-long tunnel is being dug 260 feet underground to carry treated water into Lake Ontario 
Toronto, Canada—City of Toronto residents hoping to catch a glimpse of the multi-million-dollar, 1,000-tonne machine digging a new 7-meter-diameter, 3.5-kilometer-long tunnel under Lake Ontario will get their chance when the Ashbridges Bay Treatment Plant Outfall (ABTPO) project is featured in an episode of a new Smithsonian Channel show, Impossible Repairs.


The show’s host, Mike Davidson, joins staff from Hatch, the City of Toronto, and Southland Holdings to get an up-close-and-personal look at the tunnel boring machine that is digging a tunnel 260 feet below the earth’s surface to carry treated water into the lake.

The ABTPO project is a critical element of a program that will expand the wastewater treatment capacity for Toronto—Canada’s largest city. The project is anticipated to improve the city’s shoreline, beaches, and Lake Ontario's water quality, while keeping up with a growing population and changing weather, which puts additional strain on the century-old wastewater treatment plant. Hatch provided project management, detailed design, and construction management and was responsible for designing all major outfall components including the upstream effluent conduits, shaft, tunnel, and risers.

In its first season, the show transported audiences on an adrenaline-fueled journey across the globe with host Mike Davidson at the helm. The cameras follow Mike as he embeds with crews and goes on various adventures, including swimming in shark-infested Caribbean waters for a closer look at SeaStation fish pens and flying a gargantuan Air Crane helicopter to help harvest timber from the hard-to-reach forests of British Columbia. In each episode, audiences discover the engineering secrets and problem-solving tactics used to ensure these essential machines run safely and on schedule.

“Bring on the impossible. We are thrilled to showcase the City of Toronto’s Ashbridges Bay Treatment Plant Outfall project on the Smithsonian Channel. Viewers will see how Hatch is overcoming the impossible by building one of the largest wastewater outfalls in North America,” said Kevin Waher, Hatch’s construction manager for the ABTPO project.

Catch the episode of Impossible Repairs this Sunday, October 24 at 8 p.m. ET on Smithsonian Channel (in Canada also available on Amazon Prime Video and Apple TV+).


For more information, please contact:

Lindsay Janca

Global Director, Public Relations
Tel: +1 905 403 4199

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About Impossible Repairs

Impossible Repairs is produced by Attraction Images Inc. in association with the Smithsonian Channel, Blue Ant Media, and Beyond Distribution. Mike Davidson is the series producer and director, as well as the on-screen expert in the field; the series' executive producers are Joey Case, Nicole Hamilton, Richard Speer for Attraction Images Inc., and John Cavanagh for the Smithsonian Channel. Overseeing the series for the Smithsonian Channel in Canada is Sam Linton, Head of Original Content for Blue Ant Media’s Canadian channels.