An economical alternative to concrete culvert structures or traditional beam bridges.
For smaller buried arch bridge applications, Bolt-A-Plate corrugated steel plate is the product of choice for its lightweight strength and versatility.
Available in our widest range of shapes and sizes, it is perfect for highly economical Buried Metal Bridge and drainage structure construction or replacement, as well as many other applications in the transportation, public works, mining and forestry sectors.
An economical, lightweight and strong truss bridge alternative
Frequently used as more economical alternatives to traditional beam bridges or truss bridges, open-bottom buried arch bridges made from AIL’s Bolt-A-Plate offer improved hydraulic flow, help counter erosion and preserve natural streambeds.
Easy to ship and install, buried arch bridges use local crews and equipment
Galvanized steel Bolt-A-Plate buried arch bridges are attractive alternatives for DOTs, counties and municipalities as they are easy to ship and install using local crews and equipment. The geometries of these buried arch bridges and corrugated pipe structures can be easily tailored to site and project requirements. And, with no expansion joints at the road surface as in beam bridges or truss bridges, their reduced maintenance and lower life cycle costs are very attractive.
Bolt-A-Plate is recommended for buried bridges and tunnels, grade separations, road or rail overpasses, stream crossings, fish passages, culvert relines, stockpile or escape tunnels, portals, canopies, storage structures, utilidor systems and conveyor covers or overcasts.
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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Bolt-A-Plate Brochure
20-page, full-colour brochure outlining Bolt-A-Plate product, applications, specifications and geometries.
Download(6.30 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(12.58 MB)
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Bolt-A-Plate Culvert Replacement, Hodgewater Line, NL
Check out this Bolt-A-Plate Pipe Arch with Best-Kote Buried Bridge Coating that extends the service life to over 75 years by providing 360° protection against corrosion, abrasion and inorganic acid, salts or alkali (diluted).
Play(1:28)
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Bolt-A-Plate Round Replacement, Conception Bay South, NL
Take a quick video tour of this Bolt-A-Plate Round culvert replacement at Kelligrews River. Its Best-Kote Buried Bridge Coating provides over 75 years of design service life in harsh environments.
Play(1:28)
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Twin Bolt-A-Plate Culvert Replacements, Come by Chance River, NL
Get a closer look at these two Bolt-A-Plate Rounds which were value engineered with Best-Kote Buried Bridge Coating only on the lower portions where it is needed most.
Play(1:38)
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Bolt-A-Plate Stream Crossing, Mission, BC
A Bolt-A-Plate Arch with MSE Wire Walls created an economical, resilient and sustainable solution for a new stream crossing on Best Avenue in Mission, BC.
Play(1:19)
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Bolt-A-Plate active transportation tunnels, Calgary, AB
Our Pear-Shaped Bolt-A-Plate with MSE Precast Panels Walls made an attractive and sustainable solution for the Sarcee Trail / TCH Interchange while providing active transportation access to a nearby development.
Play(1:35)
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Bolt-A-Plate Recreational Trail Highway Underpass
This drone video let's you fly over (and through!) our Bolt-A-Plate pedestrian/trail crossing tunnel located in Lake Country, near Kelowna, BC.
Play(1:52)
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Bolt-A-Plate Pipe Arches provide flood relief near Courtenay, BC
Take a 360° video tour of this series of seven steel culverts installed under the North Courtenay Connector to provide floodplain relief and protect the roadbed.
Play(1:34)
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Time-Lapse Video: Eight-Day Bolt-A-Plate Assembly
Watch an AIL Bolt-A-Plate structure assemble in eight days in this Okanagan Valley recreation/wildlife crossing project.
Play(2:12)
RELATED PRODUCTS
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Dur-A-Span Structural Aluminum Plate
Corrosion-resistant buried arch bridges and pipe structures for saltwater and aggressive soil applications.
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Best-Kote Buried Bridge Coating
Optional coating extends the service life of structural steel plate to over 75 years.
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MSE Precast Panel Walls
An easy-to-install architectural concrete retaining wall system with a true sense of style.
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MSE Wire Walls
Economical MSE wire mesh retaining walls use heavy-duty galvanized steel components.
