Bridge Girders


Precast / Prestressed Concrete is the material of choice for bridge and commercial structures. This is due to the fact that this type of structure has proven itself to be durable, economical and low maintenance. Forterra Precast / Prestressed concrete construction products are fabricated in a facility with PCI qualified quality control and delivered to project sites with specialized hauling equipment as required.


  • Vehicle Bridges
  • Railroad Bridges
  • Pedestrian Bridges
  • Pipeline Support Bridges
  • Docks


  • Assured Quality Control (PCI Certified Plant)
  • Flexibility in design
  • More durable and economical than other bridge systems
  • Special modified sections are avaible with extended span ranges up to 165 feet
  • Technical support for owners and designers

Applicable Bridge Specifications

The following specifications apply to Precast / Prestressed Concrete Bridge Girders manufactured by Forterra

  • Various State Department of Transportation
  • PCI Certifications
  • AASHTO Standard Specifications for highway bridges (HS20 Loading) or
  • AASHTO LRFD (HL-93 loading)

Prestressed Concrete Girder Bridges (24 different types) are available:

  • AASHTO Girders Types I, II, III, IV, V and VI
  • Washington Modified Girder in 1450, 1850 and 2400-millimeter sections
  • Modified Decked Bulb Tees in heights up to 6 feet and widths up to 8 feet
  • Single Cavity Box Beam Girders in 42-inch widths and depths up to 72 inches
  • Double Cavity Box Beam Girders in 84-inch widths and up to 36 inches
  • Voided Slab Girders in 48-inch widths and 15, 18, 21 and 24-inch depths
  • UBT Girders available in depths ranging from 42 inches to 98 inches in depth
Grounded In Strength