Drainage Pipe & Products

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Precast Box Culverts

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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 cannot provide adequate flow capacity
  • As a superior substitute for cast-in-place box culverts, long-span metal arches, short bridges and multibarrel circular culverts or drains

Applications

Precast Box Culverts can be used for the following:

  • Highway culverts
  • Railroad culverts
  • Short-span highway bridges
  • Storm drains
  • Extension of existing box culverts
  • Livestock, pedestrian or golf cart undercrossings
  • Utility tunnels
  • Underground stormwater retention systems
  • Groundwater recharge systems
  • To replace existing open channels or ditches, enabling land to be used productively
  • Jacked or tunneled installations

Sizes

Precast Box Culverts are normally available in spans of 900mm through 6100mm, with a variety of rises. Contact your local Forterra representative for specifics.

End Treatments

Precast headwalls, wingwalls, cut-off walls, and parapets are available for all sizes.

Applicable Specifications

  • OPSS 1821 — Ontario Provincial Standard Specification 1821, material specification for precast reinforced concrete box culverts and box sewers.
  • Canadian Highway Bridge Design Code – CSA S6-06
  • MTO and MTQ
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