Structural Plate Solutions

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

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

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

Dur•A•Span

Benefits

Applications

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

rrosion/abrasion-resistant Dur•A•Span culvert; environmentally-friendly.

Overview
Details
Photo Gallery

Lightweight, strong and corrosion/abrasion resistant, Dur•A•Span goes the distance in over 10,000 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.

Recommended for sites with corrosive soil and/or water
Lightweight
Performance proven in over 10,000 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; Vertical Ellipses; Pipe Arches, and; Pear Shaped
Bottomless designs are environmentally-friendly
Can reline older structures

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

duraspan_corrugation

Box Culvert

Standard Arch

High Profile Arch

Vertical Ellipse

Pear Shaped (Pedestrian/Animal)

Pear Shaped (Vechicular)

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.

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.

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