Owner: Metrolinx
Client: Ontario Transit Group
Project: Ontario Line South Civil Contract
Description: The Ontario Line's South Civil section is a $6 billon dollar design-build-finance project to build a 6 km twin-tube subway tunnel from Exhibition Station to the Don Yard portal. The project features one above-ground station at Exhibition, two underground stations integrated with TTC's Osgoode and Queen stations, and four new underground stations at King/Bathurst, Queen/Spadina, Moss Park, and Corktown. The project aims to enhance transit connectivity, reduce congestion, and support economic growth, with completion expected by 2030.
Role: 4Sight’s role is to provide Utility Coordination and Subsurface Utility Engineering services to manage the risks associated with Utilities during the design phase of the project for the PPP construction Contractor.


We recently asked our team whether they would rather spend a day working in the field in -20°C or +35°C weather. While the answers were split, one thing was clear: both extremes bring their own unique challenges. As temperatures continue to rise this summer, we’re mindful of the impact that heat can have on our […]
No worries here about damaging underground utilities! Right? Wouldn’t it be nice if we could all say yes? Many project owners can, but many cannot. Subsurface Utility Engineering (SUE) has become an essential component of modern infrastructure planning, risk management, and design. As cities grow and underground networks become increasingly congested, the need for accurate […]
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E: info@4SightUE.com
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