A full range of corrugated metal structures for buried arch bridge construction and many other applications.
AIL has been value engineering cost-effective structural steel plate solutions for over 55 years. Our high-quality corrugated metal products, engineering excellence and innovative designs are key to delivering the best results for our clients.
We manufacture a complete range of buried arch bridges to handle every bridge construction need and budget — overpasses, stream crossings, culverts and more. Our corrugated metal structures ship and install easily with local crews and equipment. These efficient structures offer many advantages over their concrete equivalents or traditional site-built beam bridges or truss bridges, and they offer a wide range of enhanced aesthetic treatments — inside and out.
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Structural Plate Bridges & Tunnels
Ultra-Cor Structural Steel Plate
Choose ultra-deep-corrugated Ultra-Cor for larger applications like highway tunnels and overpasses.
Super-Cor Structural Steel Plate
Choose deep-corrugated Super-Cor for applications like box culverts and highway overpasses.
THE EDGE Four-Flange Structural Liner
Give your steel shaft and tunnel liner plate projects THE EDGE with the latest innovation in structural plate construction.
Bolt-A-Plate Structural Steel Plate
Corrugated Bolt-A-Plate is ideal for smaller corrugated metal bridge and drainage culvert structures.
Dur-A-Span Structural Aluminum Plate
Corrosion-resistant buried arch bridges and pipe structures for saltwater and aggressive soil applications.
AIL Geotextile Reinforced Soil (GRS) Bridges
Pre-engineered, open-bottom soil bridge solutions that are fast, economical and fish/wildlife friendly.
Best-Kote Buried Bridge Coating
Optional coating extends the service life of structural steel plate to over 75 years.