Maximize the service life of buried arch bridges in aggressive environments.
Building on the years of proven performance of polymer-coated corrugated steel pipe, AIL has partnered with some of the world’s leading developers of coatings to provide Best-Kote Buried Bridge Coating. For extended service life of Super-Cor and Bolt-A-Plate buried arch bridges, tunnels and pipe culverts, Best-Kote offers superior protection and long-term durability. We recommend our epoxy coating options for Ultra-Cor corrugated steel.
Two layers of 360° protection for corrugated metal
This two-layer coating system is factory-applied to the structural steel plates through an electrostatic-bonding process that ensures 360° protection. The first layer is a zinc-rich base layer for excellent corrosion resistance and barrier protection. The second layer is a polymer finish that provides superior resistance to corrosion, abrasion and inorganic acid, salts or alkali (diluted).
Determining when coatings are needed on corrugated metal
Soil conditions at the installation site can greatly influence your decision on coatings. Please refer to the environmental limits table in our Best-Kote brochure or contact your nearest AIL Technical Sales Representative to help determine your bridge construction site’s requirements.
Recommended bridge construction applications
Best-Kote Buried Bridge Coating is recommended to extend the service life of any of our corrugated metal plate products in harsh environments. This includes buried arch bridges and tunnels, grade separations, road or rail overpasses, stream crossings, fish passages, storm sewers, culverts and protection structures.
Discover the many benefits of buried arch bridges
Structural plate bridges or buried arch bridges offer many advantages over concrete equivalents and traditional site-built beam bridges, truss bridges or concrete drainage pipes.
Visit our Buried Bridge Benefits page to learn more >>
Bring enhanced aesthetics to your buried arch bridges
From interior finishes and lighting to exterior end treatments and even urban greenways on top, take a look at the full range of possibilities for buried arch bridges in our Design Ideas Gallery.
Visit our Design Ideas Gallery to learn more >>
BROCHURES & VIDEOS
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Super-Cor Bridge Replacement, Little Catalina, NL
Take a 360° drone-video tour of this bridge replacement project on Route 230 in Little Catalina, NL. The Super-Cor Box Structure with Best-Kote Buried Bridge Coating and Cast-in-Place Concrete headwalls will provide over 75 years of resilient and sustainable service.
Play(1:26)
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Best-Kote Brochure
4-page, full-colour brochure outlining Best-Kote polymer coating product, applications and specifications.
Download(5.01 MB)
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AIL Buried Metal Bridges & Tunnels Planning & Resource Guide
Discover how AIL's Buried Metal Bridges offer many advantages over concrete structures and bridges in this comprehensive guide with: benefits section; design ideas and sector/application galleries; complete product information and comparisons; and installation details.
Download(12.22 MB)
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Two-Flange Tunnel Liner Plate Brochure
Get all the details on AIL’s Two-Flange Liner Plate Solutions in steel or aluminum that provide optimum stability and protection when constructing new tunnels and relining structures under highways and railroads or relining vertical shafts.
Download(3.47 MB)
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Super-Cor Box Culvert, Little Catalina, NL
Take a 306° drone-video tour of this bridge replacement project nearing completion on Route 230 in Little Catalina, NL. The Super-Cor Box Culvert with Best-Kote Buried Bridge Coating and Cast-in-Place Concrete headwalls will offer over 75 years of resilient and sustainable service.
Play(1:42)
RELATED PRODUCTS
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Ultra-Cor Structural Steel Plate
Choose ultra-deep-corrugated Ultra-Cor for larger applications like highway tunnels and overpasses.
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Super-Cor Structural Steel Plate
Choose deep-corrugated Super-Cor for applications like box structures and highway overpasses.
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Bolt-A-Plate Structural Steel Plate
Corrugated Bolt-A-Plate is ideal for smaller corrugated metal bridge and drainage culvert structures.
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AIL Geotextile Reinforced Soil (GRS) Bridges
Pre-engineered, open-bottom soil bridge solutions that are fast, economical and fish/wildlife friendly.
