This consultation closes at 11:59 p.m. on:
December 7, 2025
Proposal summary
This draft of the Structural Manual includes Revision #61, and the final version of this draft is intended to supersede the previous edition. The major change is adoption of S6-25 along with other updates focused on the durability. Few minor clarifications & corrections have also been made.
Due to file size limitation the manual is being posted into two parts. The final copy of the Manual will be published as single document.
Reader may request a one compiled copy if they wish to by sending email to jonathan.kiam-pupu@ontario.ca
Proposal details
- The draft of Structural Manual Revision 61 maintains the same reorganization approach as the previous version i.e., aligning various concepts into logical groupings. Each section includes minor clarifications and corrections. The most significant update is contained in Division 1, where exceptions to CHBDC S6-25 have been incorporated.
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Summary of Key Updates
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Division 2, Section 2: Guidance has been added on construction loading, hydraulic design, and the required contents of structural drawings.
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Division 2, Section 5: Updates to the Integral Abutment Policy.
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Divisions 6, 7, and 8: Multiple revisions related to the durability of structural components. Division 2, Section 9: New deck cantilever design requirements and introduction of a design aid for deck cantilever design.
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Division 2, Section 12: Updated corrosion protection policy and a new section on composite construction using GFRP.
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Division 2, Section 16: Revised structural grounding requirements.
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Division 2, Section 17: Table 1 updated to align with earthquake probabilities of occurrence based on the EQ Canada web tool.
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Division 3: Introduction of new design aids DA 9-1 and DA 9-2 for deck cantilever reinforcement design.
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As with previous version of Structural Manual, the updates to Structural Standard Drawings (SSD) are provided in a separate document titled “SSD Revision Sheet All-Rev”, and all SSD prints are compiled in “SSD Complete Manual”. Both documents are available on the MTO Technical Publications website.
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