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
4-page, full-colour brochure outlining Best•Kote polymer coating product, applications and specifications.Download
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