Toronto Ashbridges Bay High-Rate Treatment Facility | ?m | ?s | City of Toronto

AshNavabi

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Site Plan Approval submitted in 2009, still "Under Review", without any documents:

Application Number:
09 160691 STE 32 SA
Application Type:
Site Plan Approval
Date Submitted:
20/08/2009
Status:
Under Review
Description:
Site Plan Approval application to construct a biogas cogeneration facility associated with the Ashbridges Bay Treatment Plant. The facility consists of seven outdoor cogeneration engines and a small storage/electrical building. The facility will be operated by Toronto Hydro Energy Services.

From the City website:

"The high-rate treatment facility is designed specifically to provide treatment of CSOs intercepted by the new tunnel system."

Google Street View image of the crane. The other thread on the landform expansion also has pictures of the crane from a distance.

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AlbertC

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Article from February 2021 with an overhead view of the site:


A$216 million upgrade at the Ashbridges Bay Water Treatment Plant (ABWTP) was hit by a year’s delay during the excavation phase but is back on track to install an innovative UV disinfectant system.

Nancy Kim, a City of Toronto project manager, says work on the upgrade to the wastewater treatment plant at Lake Ontario by Leslie Street was delayed six months because they discovered a massive sea wall buried along the waterfront.

“It wasn’t on any of the drawings and we had to go back several iterations to find it,” she says. That means it had to be dug up and excavated before the rest of the work could be completed, adding about six months to the schedule. About the same time they found sheet pilings buried along the waterfront close to a service road.

“We had to figure how to get those out without impacting the road which was right up against them so it meant shutting the road down to one lane,” she says, adding they had to go back to the archives to find notes from the 1940s and earlier.

Trouble comes in threes. As they started installing the 1,300 pilings on which the building structures will be placed, engineers began noting they were shifting out of alignment.

“We stopped installation, of course, to find out what was going on,” she says. “We started a geotechnical investigation and found it wasn’t the design of the piles but the bedrock with its Georgian shale in parts, but not uniformly distributed. It’s like a pepper shaker with some in spots.”

With that knowledge in mind the team devised a plan to resolve the pile problem. As of early February, some 1,000 of the 1,300 pilings are in place, Kim says. Cost for the extra work required hasn’t been calculated into the price of the project yet.

The scope of the work at the ABWTP includes a new disinfection building with state-of-the-art UV equipment and sodium hypochlorite/bisulfite chemical systems along with new reinforced concrete disinfection channels housed within a three storey building.

That building includes underground service tunnels and effluent conduits, mechanical service rooms, chemical storage and dosing facilities, electrical power distribution, office space, automation systems and various electrical and instrumentation and control systems.


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AlvinofDiaspar

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Article from February 2021 with an overhead view of the site:





View attachment 350556

I think this might be a different project - intended to replace chlorination.

AoD
 

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