Structural Plate Bridges and Tunnels

Dur•A•Span

Corrosion/abrasion-resistant  Dur•A•Span arch stream crossing.
rrosion/abrasion-resistant  Dur•A•Span culvert; environmentally-friendly.

Corrosion/abrasion-resistant Dur•A•Span made from solid aluminum alloy structural plate is ideal for saltwater and aggressive soil environments. 

Lightweight, strong and corrosion/abrasion resistant, Dur•A•Span goes the distance in over 15,000 structures worldwide - beating the usual heavyweight contenders, like precast concrete, on overall performance and cost.

And now, thanks to our innovative reinforcing rib technology, Dur•A•Span can go even further (and wider) to outperform all challengers.

Benefits

  • Recommended for sites with corrosive soil and/or water
  • Lightweight
  • Performance proven in over 15,000 installations worldwide
  • Spans can exceed 12.2 m (40')
  • Corrugation profile of 229 mm (9") pitch x 64 mm (2.5") depth
  • Available in: Box Culverts; Standard or High Profile Arches; Rounds; Horizontal Ellipses; Pipe Arches; and Pear Shaped
  • Bottomless designs are environmentally-friendly
  • Can reline older structures

Applications

  • Stream Crossings
  • Culverts
  • Fish Passages
  • Saltwater and Aggressive Applications
  • Road Salt and Other Storage Structures
  • Culvert Relines

The corrugation profile of Dur•A•Span is strong enough for many different applications.

duraspan_corrugation


With a wide variety of shapes, including Box Culverts, Dur•A•Span is suitable for many different applications:

Cross-section profile drawing of AIL Dur•A•Span Box Culvert
Cross-section profile drawing of AIL Dur•A•Span Standard Arch

Cross-section profile drawing of AIL Dur•A•Span High Profile Arch

Cross-section profile drawing of AIL Dur•A•Span Round

Box Culvert


 

Standard Arch


High Profile Arch


Round

Cross-section profile drawing of AIL Dur•A•Span Ellipse

Cross-section profile drawing of AIL Dur•A•Span Pipe Arch
 Cross-section profile drawing of AIL Dur•A•Span Pear Shaped (Pedestrian/Animal
 Cross-section profile drawing of AIL Dur•A•Span Pear Shaped (Vehicular)

Horizontal Ellipse

 

Pipe Arch

 

Pear Shaped (Pedestrian/Animal)

 

Pear Shaped (Vechicular)


AIL's Structural Steel Plate solutions are easy to ship and install.

Long-lasting and virtually maintenance-free, AIL’s corrugated metal structures ship and install quickly and economically, with minimal equipment and labour requirements. Our technical teams will guide you through the complete project to ensure its success.

Reinforced concrete footings are cast over the prepared site.
The first arch segment is completely assembled on the ground.

Reinforced concrete footings are cast over the prepared site.

The first arch segment is completely assembled on the ground.

Then, it is lifted into place and bolted to the footings on either side.
The segments bolt into base channels, integrated into the concrete.

Then, it is lifted into place and bolted to the footings on either side.

The segments bolt into base channels, integrated into the concrete.

Plates then attach individually to make up other arch segments.
If specified, reinforcement ribs are then added.

Plates then attach individually to make up other arch segments.

If specified, reinforcement ribs are then added.

Layers of engineered backfill are added in sequential lifts.
Then the completed road surface is added with safety barriers.

Layers of engineered backfill are added in sequential lifts.

Then the completed road surface is added with safety barriers.

Corrosion/abrasion-resistant Dur•A•Span is ideal for a wide variety of applications.

Corrosion/abrasion-resistant Dur•A•SpanTM structural aluminum plate box culvert with matching headwall.
Corrosion/abrasion-resistant Dur•A•SpanTM structural aluminum plate box culvert with matching headwall and wingwalls.
Corrosion/abrasion-resistant Dur•A•SpanTM structural aluminum plate arch being lifted into place by crane.
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Corrosion/abrasion-resistant Dur•A•SpanTM structural aluminum plate arch being lifted into place by crane in winter.
Close up of winter installation of corrosion/abrasion-resistant Dur•A•SpanTM structural aluminum plate low profile arch.
Dur-A-Span-logo
Dur.A.Span brochure

Learn more about Dur•A•Span

» Download the brochure
Inside view of corrosion/abrasion-resistant  Dur•A•Span structural aluminum plate culvert.
 

Ontario reline sees the light with Dur•A•Span

» Read this News item
Large corrosion/abrasion-resistant  Dur•A•Span structural aluminum plate arch stream crossing.
 

Largest Dur•A•Span Box Culvert

Largest Dur•A•Span Aluminum Box Culvert installed.

» Read this News item