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Scaffold Stair & Temporary Steel Support Site Review – Toronto

Parsways Inc. conducted a structural site review of a temporary steel support system and scaffolding stair installation as part of platform modifications at a TTC facility.


The review focused on verifying field installation against approved shop drawings and confirming general conformance with project requirements and applicable Ontario codes.

Location: Toronto, Ontario
Completion: August 2024
Sector: Transportation / Municipal Infrastructure

1. The Challenge

Platform modifications required temporary structural steel supports and a scaffold stair system to maintain safe access and stability during construction.


Existing Platform Alterations:
The work included partial removal of the existing platform and relocation of temporary supports to accommodate new tank installation.


Conformance Requirement:
An independent structural site review was required to confirm that field installation matched the approved shop drawings and project documents.

2. The Engineering Solution

Parsways performed an on-site structural review of the temporary steel support and scaffold stair system.


a) Field Verification:
Installed steel members and scaffold components were visually reviewed against the approved drawings.


b) Code Compliance Check:
The installation was assessed for general conformance with the Ontario Building Code and CSA S16.


c) Engineer Confirmation:
A stamped site review letter confirmed general conformance with the approved documents and project requirements.

3. The Outcome

The temporary steel support system and scaffold stair access were verified as installed in general conformance with the approved shop drawings and applicable codes. The review confirmed safe and stable temporary access during platform modification works, supporting continued construction operations. An engineer-stamped site review letter documented structural conformance and compliance with OBC and CSA S16 requirements in Ontario.

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