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Structural Plate Bridges and Tunnels

Geotextile Reinforced Soil Bridges

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AIL Geotextile Reinforced Soil (GRS) Bridges are fast and economical crossing solutions

AIL’s GRS Bridges use steel anchor rods to connect our structural plate arches to the backfill/geotextile composite and transfer the loads into the surrounding GRS mass. This innovation brings a wide array of benefits and resource road operators are taking notice.

Benefits:

  • Transfers loads from metal arch to surrounding GRS mass
  • No need for concrete footings or pile foundations
  • Light weight and ships economically to site
  • Maintains existing stream bed
  • Allows for wide range of backfills
  • Ideal for remote locations
  • Low maintenance costs
  • Fish friendly
  • Scour resistant
  • Spans from 3.66 m to 12 m or more

Applications:

  • Resource Road Crossings
  • Stream Crossings and Fish Passages
  • Remote Locations
  • Environmentally Sensitive Areas

For more information, e-mail or call Phil Carroll at 1-604-818-1507.


AIL Branded Geotextiles are also available for our GRS applications

AIL Geotextiles are composed of high-tenacity polypropylene yarns woven into a network to retain their relative positions. AIL Geotextiles are inert to biological degradation and resistant to naturally-encountered chemicals, alkalis, and acids. We offer three increasing strengths of AIL Geotextiles to help you complete your GRS project. Download our Technical Data Sheets for more information or talk to one of our GRS experts.

AIL 90

Download AIL 90 Technical Data Sheet for more information »

AIL 100

Download AIL 100 Technical Data Sheet for more information »

AIL 120

Download AIL 120 Technical Data Sheet for more information »

GRS technology “puts the dirt to work”

GRS buried bridges are a soil-steel geotextile composite structure. Dead and live loads are supported by the reinforced soil, structure and natural or improved subgrade soils.

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  1. Anchor Rods – The arch structure is connected to the GRS soil mass composite with soil anchor rods. The anchor rods ensure the structure maintains shape during backfilling.
  1. GRS – Closely spaced geotextile between layers of compacted backfill act to confine the soil particles.
  1. Boulder layer foundation – Used in lieu of conventional strip footings or pile foundations. 

Various sizes of Super•Cor Low Profile Arches available. 

20S Low Profile Arch
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28S Low Profile Arch
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AIL Geotextile Reinforced Soil Bridges install easily in remote locations.

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Download the drawings of our two largest pre-designed structures of Super•Cor Low Profile Arches


20S Low Profile Arch
Download PDF >>

28S Low Profile Arch
Download PDF >>

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Learn more about Geotextile Reinforced Soil Bridges.


Download the brochure »