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For more guidance on materials specifications, refer to [[Aggregates]], [[OPSS aggregates]] and ([https://www.roadauthority.com/Standards/?id=a28fdfaf-3bf8-4679-81ca-4e44b2263cf8 Ontario Provincial Standards, 2013]) <ref>Ontario Provincial Standards. 2013. OPSS.PROV.10101 Aggregates - Base, Subbase Select Subgrade, and Backfill Material. https://www.roadauthority.com/Standards/?id=a28fdfaf-3bf8-4679-81ca-4e44b2263cf8</ref>
For more guidance on materials specifications, refer to [[Aggregates]], [[OPSS aggregates]] and ([https://www.roadauthority.com/Standards/?id=a28fdfaf-3bf8-4679-81ca-4e44b2263cf8 Ontario Provincial Standards, 2013]) <ref>Ontario Provincial Standards. 2013. OPSS.PROV.10101 Aggregates - Base, Subbase Select Subgrade, and Backfill Material. https://www.roadauthority.com/Standards/?id=a28fdfaf-3bf8-4679-81ca-4e44b2263cf8</ref>
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