OPSS 1821 — Ontario Provincial Standard Specification 1821, material specification for precast reinforced concrete box culverts and box sewers
Reinforced Concrete Box Culverts

Reinforced Concrete Box Culverts

Precast Box Culverts are ideal for situations where depth or height restrictions demand wide, shallow conduits to handle required flows, as well as: Installations where circular or elliptical concrete pipe […]

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