MULTI-PLATE
Developed over 75 years ago, MULTI-PLATE® structures, consisting of field bolted galvanized steel plates, have a long history of strength, durability and economy. MULTI-PLATE is arranged and curved to make a variety of shapes, including round, pipe-arch, arch, ellipse (horizontal and vertical), and underpass shapes.
Typical MULTI-PLATE® applications include:
- High combined live and dead loads
- Deep cover applications
- Stream enclosures
- Golf cart and pedestrian underpasses
- Aggregate tunnels
Aluminum Structural Plate
Aluminum Structural Plate provides all the advantages of steel MULTI-PLATE and, as a plus, its light weight adds to the ease of installation compared to other structures. Aluminum Structural Plate weighs 1/50 as much as reinforced concrete pipe, reducing assembly and equipment costs and allowing for easy handling of long preassembled structures. Shapes include pipe, pipe-arch, horizontal and vertical ellipses, arches and underpass.
Typical Aluminum Structural Plate applications:
- Small bridges
- Grade separation
- Underpasses
- Stream enclosures
- Rehabilitating structures through relining
- Railroad overpasses
- Over 35,000 installations since 1931
- Spans to 26 feet
- National specifications and proven durability
- Variety of shapes, sizes and end treatments for any given application
- Fast, easy, low-cost installation
- Significant load-carrying capacity
- Extensive technical support
- Economical solutions
ALUMINUM BOX CULVERT
Aluminum Box Culvert
Aluminum Box Culverts are a practical and cost-effective solution for small bridge replacement. The wide-span, low-rise shapes are lightweight as well as fast and easy to install. Aluminum Box Culverts are available in a large range of standard sizes that permit a minimum cover of only 17 inches for all spans, and handle HS-20 or HS-25 live loads.
Typical Aluminum Box Culvert applications:
- Small bridge replacement
- Skewed bridge alignment
- Stream crossings
- More than 7,000 installations since 1976
- Spans to 35 feet
- Wide-span, low rise structures
- Ideal for small bridge replacements
- Variety of shapes and sizes
- Lightweight
- Fast, easy, low-cost installation
- Suitable for rehabilitation applications
- Extensive technical support
- Economical
SUPER-SPAN and SUPER-PLATE
SUPER-SPAN
SUPER-SPAN™ structures utilize MULTI-PLATE® plates and special features that allow for a different and large family of shapes. With spans up to 50 feet, SUPER-SPANs are some of the most widely accepted long-span, corrugated steel bridge structures in the world. Shapes include the Low Profile Arch, High Profile Arch, Horizontal Ellipse, Pear and Pear Arch.
Typical SUPER-SPAN™ applications:
- Wetland crossings
- Multi-span bridges
- Railroad underpasses
- Stream enclosures
- Vehicular tunnels
- Grade separation
SUPER-PLATE
SUPER-PLATE® structures are long span structures, similar to the SUPER-SPAN™, but with basic plate material consisting of aluminum rather than steel. These structures add both thrust beams and reinforcing ribs to conventional aluminum structural plate to achieve larger sizes. Available shapes include low and high profile arch and horizontal ellipses.
Typical SUPER-PLATE® applications:
- Wetland crossings
- Multi-span bridges
- Railroad underpasses
- Stream enclosures
- Vehicular tunnels
- Grade separation
- Over 3,000 installations since 1967
- Spans to 52 feet
- National specifications and proven durability
- Variety of shapes and sizes for any given application
- Endless aesthetic and treatment options
- Extensive technical support
- Economical