Drainage Pipe & Products


Precast Modular Bridge Systems


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Forterra's Precast Modular Bridge Units consist of precast pier or pile caps, deck panels and parapet rails and are adaptable to timber, steel or concrete pile substructures. They offer these benefits:

  • Can be installed by small crews
  • Superior durability over timber/steel and other bridge construction methods
  • No paving required over deck units
  • Short construction times
  • Designs that stand up to HS20 loading


Use these bridge units for:

  • Vehicular bridges
  • Pedestrian bridges
  • Utility line support
  • Temporary bridges
  • Docks


Precast Bridge Units are available in spans of 15, 19, 25, 31 and 40 feet and 3-foot-to-6-foot widths, allowing for unlimited lengths, widths, skews and styles.

Applicable Specifications

  • AASHTO H15 or HS20 loading
  • Various state DOTs
  • ACI 318
Grounded In Strength