Toronto Western Hospital

As part of a major healthcare infrastructure upgrade, Toronto Western Hospital is constructing a new 15-storey patient tower with two levels of underground space. InGeo Design was onboarded by EllisDon Corporation to provide comprehensive GeoStructural design services for excavation support at the southeast corner of Bathurst Street and Nassau Street. This addition will expand the hospital’s capacity to serve over 450,000 patients annually and is scheduled for completion in 2028.

With an estimated excavation shoring cost of less than $2 million and a total linear shoring length of 237 meters, this urban project presented several design and logistical challenges. InGeo Design responded with tailored solutions delivered through quick turnaround and direct access to experienced engineers.

Key Challenges

• Designing safe and compliant excavation systems adjacent to active TTC streetcar tracks
• Navigating overhead hydro lines and confined vertical clearance along the west face
• Meeting City of Toronto and TTC monitoring requirements
• Addressing structural sensitivities of the existing hospital
• Delivering designs within tight scheduling windows

InGeo’s Role & Scope

1. Design of multiple excavation support systems, tailored to site-specific conditions:

• Soldier pile and lagging
• Caisson walls with tiebacks
• Shotcrete and soil nail systems for confined and overhead-restricted areas

2. Pre-construction condition surveys, covering:

• Hospital exterior façade
• Adjacent church structure
• Sidewalks, public streets, and hardscapes

3. Multiple shoring options provided to accommodate staging, access limitations, and hydro line constraints.

4. Planned construction-phase monitoring services, including:

• Precision target monitoring
• Inclinometer and pile movement tracking
• Continuous settlement and vibration monitoring per City of Toronto standards