Mississauga Peter Gilgan Mississauga Hospital | ?m | 22s | Trillium Health Partners | Stantec

Aug 4
I had a look at the site last week and the only thing taking place was storm water and waterline work on the west side. New security gates installed at both end that requires keycard to entre and exit with the Queensway currently block off.

I am hosting a Virtual Townhall on the upcoming Trillium Hospital construction (The Peter Gilgan Mississauga Hospital) to discuss mitigation measures and ensure your concerns are heard.

While construction is underway, we are already hearing feedback from residents. This Townhall is your opportunity to:

  • Learn more about the project and potential impacts
  • Hear directly from City of Mississauga staff and Trillium Health Partners
  • Ask questions and raise concerns in advance of full construction
🗓 Date: Friday, August 8, 2025
🕥 Time: 11:00 AM
📍 Location: Virtual (link will be sent to all confirmed attendees)

Please RSVP to confirm your attendance and receive the meeting link:

👉 Click here to RSVP

Your input is important as we work to ensure this project proceeds with our community’s needs in mind.

Sincerely,
Councillor Dipika Damerla
Ward 7 – City of Mississauga
 
drum118 said:
Aug 4
I had a look at the site last week and the only thing taking place was storm water and waterline work on the west side. New security gates installed at both end that requires keycard to entre and exit with the Queensway currently block off.

I am hosting a Virtual Townhall on the upcoming Trillium Hospital construction (The Peter Gilgan Mississauga Hospital) to discuss mitigation measures and ensure your concerns are heard.

While construction is underway, we are already hearing feedback from residents. This Townhall is your opportunity to:

  • Learn more about the project and potential impacts
  • Hear directly from City of Mississauga staff and Trillium Health Partners
  • Ask questions and raise concerns in advance of full construction
🗓 Date: Friday, August 8, 2025
🕥 Time: 11:00 AM
📍 Location: Virtual (link will be sent to all confirmed attendees)

Please RSVP to confirm your attendance and receive the meeting link:

👉 Click here to RSVP

Your input is important as we work to ensure this project proceeds with our community’s needs in mind.

Sincerely,
Councillor Dipika Damerla
Ward 7 – City of Mississauga
Click to expand...

It’s great to see the government investing further in over due public infrastructure…

(Myself) Coming from the construction industry. The real disappointment about this project is, the façade contract went to an American company, especially with all the tariffs saga. There’s a number of companies capable in Ontario…What happened to “elbows up”?
 
Sept 26
Driving by the site today, I counted 4 shoring rigs in different locations and did not have the time to stop to get some shots. Will try this coming week to get shots.
 
September 21st, 2025 photos.
bsky.app

Tim MacDonald (@realtimmacdonald.bsky.social)

Shoring underway at #TrilliumHealthPartners #ThePeterGilganMississaugaHospital in the #cooksville area of #Mississauga as seen in these September 21st, 2025 #drone photos. #healthcare #infrastructure #civilengineering #ontario #construction #photography #dronephotography #urban
bsky.app bsky.app
 
Oct 4
Lot more up on my site
Excavation is underway starting in the centre of the site as all shoring not completed. New road toto the lower level is built with the upper level still being built for the current hospital entrance
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October 12 photos for your enjoyment
bsky.app

Tim MacDonald (@realtimmacdonald.bsky.social)

Excavation in full swing at #TrilliumHealthPartners #ThePeterGilganMississaugaHospital in the #cooksville area of #Mississauga as seen in these October 12th, 2025 #drone photos. #healthcare #infrastructure #civilengineering #ontario #construction #photography #dronephotography #urban
bsky.app bsky.app
 
Dan416 said:
So if they've started, does that mean they've hammered out the funding / municipal contribution?
Click to expand...
I belive the city is kicking inthe $450 Million as requested or close to it.
 
Nov 8
More up on my site
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Shoring almost done on the south end and will complete the shoring fot the site
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Close to opening the new roads to allow the current ones to be close off for construction
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Dec 24
More up on my site

They have open the new driveway with new drop off and pickup and close the old road for the new hospital.

Most of the hole is almost dug out with shoring in place with protection. Not sure what they are building at the south-west corner and could get a shot as the camera refused to fire for some unknow reason.
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Part 1

Hospital Construction FAQ​



Many of the questions I am sharing below came directly from our recent town hall, where residents expressed thoughtful concerns about the ongoing Trillium Hospital construction. I want to make sure that everyone in our community has access to the same clear and current information. For that reason, I have included a brief FAQ that brings together responses from the Trillium project team along with several questions I have personally raised on your behalf. My goal is to provide you with one reliable source that explains what is happening now, what to expect in the months ahead, and how I am continuing to advocate for our neighbourhood.
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Your Questions to Me as Councillor

1. Who is building the wall ?
Infrastructure Ontario, through its contractor, is building the noise wall as part of the temporary truck waiting area for the Trillium Hospital expansion. The Province of Ontario is funding this work. Infrastructure Ontario is an agency of the Ontario Government and is responsible for the construction of the Mississauga Hospital

2. What impact will the construction have on nearby areas ?
Trillium Health Partners anticipates between four hundred and six hundred trucks moving in and out of the hospital site at Queensway and Hurontario. I am tracking this closely and working with City staff to reduce impacts where possible.

3. Who monitors construction noise?
The City Noise Control By law sets decibel limits for amplified sound but not for construction noise. General construction is regulated by permitted hours, and Trillium has exemptions to accelerate hospital construction. This is consistent with hospital projects across Ontario. Trillium Hospital has a Noise Mitigation Plan is in place with measures that include:
  • Replacing tonal backup beeps with quieter broadband signals
  • Managing deliveries with just in time software
  • Directing deliveries to a below grade loading dock once available
  • Implementing a comprehensive traffic control plan
  • Enforcing no idling
  • Placing shoring piles in drilled holes rather than driving
  • Using excavation equipment with ripping capability
  • Using rock removal equipment with factory installed dampers
  • Using crane overlap horns only when necessary
  • Improving radio communication for operators and perimeter flag staff
  • Scheduling concrete pumping during daytime hours
  • Limiting work between three in the afternoon and eleven at night to specific installations and deliveries
  • Scheduling structural steel between seven in the morning and seven in the evening

If these measures are repeatedly ignored, the City can consider revoking the extended construction hours. However, in the interest of transparency, I want to say that it is highly unlikely that the Province would allow this revocation as any reduction in construction hours would delay the project and increase costs. At this point co-operation and good faith is the best way forward. I will continue to monitor complaints and work with our construction partners to reduce disruption.

4. Where should residents report excessive noise or urgent issues?
I am requesting that all complaints be reported directly to Trillium Health Partners:

Here is why it is important to report all complaints directly to Trillium Health Partners
  • Faster response
Reports to 311 or to my office will have to be redirected to the hospital, which can add time.
  • Centralised data collection
All complaints are logged and responded to by Trillium, and shared with the City for transparency and follow up. Every six months, the City and the hospital construction team will review complaint data to confirm that agreements are being followed. Reporting directly to the Hospital will ensure that the volume and nature of complaints are accurately captured and provided to the City.

5. I have heard that it is Mobilinx and not the City of Mississauga that has authority over Hurontario. Is this true?

Yes, that is true. The City of Mississauga has signed an agreement with Mobilinx to hand over administrative control of Hurontario to Mobilinx for the duration of the LRT construction. Metrolinx is the provincial agency responsible for the construction of the LRT. Mobilinx is the consortium actually building the LRT.
6. What does operational control mean?

It means that decision around issues such as lane closures, traffic timing, traffic control, crossing guards, road maintenance etc. are now under the control of Mobilinx and not the City of Mississauga.

7. Is this standard for major transit construction?
Yes. This approach is similar to other Metrolinx led projects such as Finch West LRT and Eglinton Crosstown.

8. Who coordinates the hospital construction with the LRT construction?

It is unprecedented that two major provincial construction projects are taking place in the same area at the same time. The LRT is led by Metrolinx and the Hospital by Infrastructure Ontario. My concern, frankly, is that at this point there is no one person or office that has oversight of both projects. It is true that there is active co-ordination between the teams. My concern is hypothetically speaking, what happens if one wants to shut down lanes on Hurontario for the LRT, while the other wants to continue to send construction trucks down Hurontario? Who is there to referee?

There is no single formal authority that can direct both projects at once to reduce disruption. The City does not have decision making authority over these two projects. I have publicly raised this issue at City Hall and will continue to raise this issue with the province.
 
Part 2
Responses to resident concerns from Trillium Health Partners

At the town hall many of you asked questions of Trillium Health partners. I have followed up with Hospital staff for answers which are below. If we have missed any questions, please let me know. Some of the answers have been condensed for brevity. I am still following up on the issue of surveillance cameras along the wall. I am sure many of you have noticed that some cameras have been installed.
Emergency Access, Traffic Flow & Gridlock Management

1. What is the dedicated emergency access plan for ambulances, paramedics, and critical staff during congestion?
The hospital’s highest priority is to ensure the timely and safe access to emergency care – this includes emergency vehicles such as ambulances and police, as well as on-call staff responding to emergencies and community members coming to the Emergency Department. Throughout all construction activities, emergency vehicles are always given immediate access to the hospital.

2. What happens if truck volumes exceed the projections used in your traffic study?
If more trucks are needed at any point, we would assess the impact and options. Throughout construction, a key the purpose of the Truck Waiting Area is to manage truck activity in a way that keeps traffic moving safely and reduces impacts on nearby residents.

3. Who has authority to make real-time operational changes if gridlock becomes unmanageable?
For issues related to hospital construction, Trillium Health Partners (THP) and our construction partners Ellis Don (ED) + PCL Limited (PCL) will work together to investigate the issue, monitor traffic conditions closely and make adjustments as needed.

4. What happens if the Truck Waiting Area becomes congested or unusable?
If the Truck Waiting Area is full, trucks will be asked to wait off-site where they began their trip until there is room to enter. This prevents trucks from lining up on neighbourhood streets and helps keep traffic moving safely.
THP and ED+PCL monitor truck activity closely and will adjust their plan as needed to minimize disruption for residents and maintain a safe, timely flow throughout construction.


Traffic Safety on Queensway & Stillmeadow

5. How will traffic safety be addressed where the angled barrier on Stillmeadow Rd reduces sightlines for drivers turning onto Queensway?
We will be removing the angled section of the sound wall to improve visibility and safety for pedestrians and drivers.

6. Should the subcontractors fail to adhere to the noise mitigation rules, will they be removed from the job?
All subcontractors are required to follow the project’s noise mitigation rules, among other rules. If a driver does not comply, they will be removed from the site, and the subcontractor will be formally notified.

7. Will noise, vibration, and air-quality readings be published publicly in real-time?
Noise, vibration, and air-quality readings are monitored in real time by ED+PCL and shared with THP so we can respond quickly if levels change or concerns arise. This data is maintained by the project teams and not published publicly.

8. How many monitors exist, where are they placed, and who controls the data?
There are several monitors installed both on the hospital site and on nearby properties to track noise, vibration, and air-quality throughout construction. These include monitors on the east side of the hospital and on adjacent properties such as Turner & Porter, Cooksville Seniors Residence, and an apartment building east of Hurontario. As well, an additional sound monitor is being installed at the Truck Waiting Area on the south side of Queensway West.

The monitoring data is managed by ED+PCL and shared with THP, allowing us to respond quickly if levels change or concerns are raised. This approach helps ensure strong oversight and responsible construction practices.

9. What are the vibration and air-quality thresholds, and who enforces them?
Vibration and air-quality limits are set as part of the project requirements, and THP and ED+PCL monitor these levels closely throughout construction. When levels approach or exceed what is acceptable, the team is required to take immediate action to address the issue and prevent further impact.

10. Will residents be automatically notified when thresholds are exceeded?
If monitoring shows that vibration, air-quality, or noise levels are higher than expected, THP and ED+PCL review the situation immediately and determine the appropriate steps to take, which can include notifying residents when needed. Our focus is on addressing issues quickly, maintaining safety, and being transparent when concerns arise.

Vibration & Structural Protection

11. What vibration limits apply to nearby homes and buildings?
Before construction began, baseline vibration testing was completed to understand existing conditions around nearby homes and buildings. We will follow required vibration limits throughout construction, and these levels are monitored in real-time so the team can respond quickly if anything approaches what is considered acceptable.

12. Who determines if cracks or structural damage were caused by construction?
A pre-construction assessment confirmed that there are no buildings within the area of influence of the construction site, so structural impacts are not anticipated. If a resident has a concern about a potential damage, they can contact Trillium Health Partners at ask@thp.ca for further investigation.

13. Will there be an independent, third-party claims process for damage?
If any damages were to occur, the project has the necessary insurance and processes in place to address any potential damages. If a concern requires further investigation, we will bring in the appropriate independent, third-party experts to help assess the situation.

14. Will THP commit to covering repairs once damage is verified?
If an investigation confirms that construction activity caused damage, we will take the appropriate steps to address it, which can include coordinating repairs or other remedies as needed.
 
Part 3
Operational & Emergency Planning

15. What is the backup plan during major closures or multi-hour incidents?
Planned construction activities that may affect the hospital are reviewed well in advance so adjustments can be made ahead of time. If an unexpected issue arises, THP and ED+PCL have a 24-7 on-call response plan that allows the team to act quickly, adjust routes, and keep access open wherever possible.

16. How will access be guaranteed for hospital staff during peak congestion?
When planning construction, we consider the times of day when the most people are arriving or leaving the hospital – such as staff shift changes – to help reduce delays.
Long-Term Project Planning & Post- Construction Protections

17. What protections will remain in place after construction is complete?
As construction winds down, all temporary measures put in place for the project will be safely removed, and the area will be restored to its intended, long-term condition.

We will return roads, pathways, and public spaces to a safe and fully accessible state once the work and project is complete.

18. When will more lighting be installed on the south path?
Additional lighting and pathway improvements, such as adding viewing portholes within the wall to improve visibility, have been installed. We will continue to monitor this area and make further adjustments as required to support visibility and safety for everyone using the path.

19. The sound barrier has created a serious safety issue. No one can see what's happening behind it on the Queensway trail which many residents and others use for walking/biking. As a consequence many of us feel vulnerable. What safety steps are being proposed?
We are currently installing viewing panels, called viewing portholes, in the sound wall to improve visibility along the pathway.
We have ensured that the viewing portholes will not reduce the effectiveness of the sound wall. Our goal is to support both safety and comfort for residents while still protecting the neighbourhood from construction noise.

20. What actions will be taken to address the dangerous conditions at Mavis & Dundas, including truck speed and incomplete bridge work? The truckers come down fast and the Police should be in place as one of these days we will hear of a serious mishap?
We understand the concerns about safety in this area, especially with fast-moving traffic during construction. THP and ED+PCL continue to reinforce approved travel routes for construction vehicles and ensure trucks are moving through the area safely.
While enforcement on public roads rests with the City of Mississauga and Peel Regional Police, ED+PCL regularly communicate with subcontractors about expectations related to safe and respectful driving, and we raise any concerns brought forward.

Restoration Plans

21. What is the final restoration plan for Queensway, sidewalks, bike lanes, and green space?
All areas affected by hospital construction will be restored as part of the project’s completion. This includes reinstating sidewalks, bike lanes, and green space so they are safe, accessible, and ready for long-term community use. We will work with the City of Mississauga to ensure the final restoration reflects the needs of the neighbourhood.

What I Am Advocating For

I will continue to ensure that the resident voice is not lost as these significant provincial projects are being built at the same time. My priorities are ensuring;
  1. Residents have a place to voice there concerns.
  2. Complaints are resolved in a timely fashion.
  3. Congestion and noise are minimised.
  4. My residents are safe.
  5. There is regular communication with residents and townhalls are held as required.
  6. Access to the hospital specially emergency care is not compromised.
  7. Push to ensure there is strong provincial oversight. My preference is for one point of provincial oversight, where the buck stops.

Upcoming Townhall

I am pleased to share the event details for our next town hall.
Click the poster below to access the registration page.

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