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Prefabricated Bridges

Portable Detour Bridges

Big R Portable            Detour Bridge section being installed. Big R Portable Detour Bridge section being installed.

Heavy-duty, easy to install and relocate.

AIL’s Portable Detour Bridges are ideal for construction detours and other temporary or permanent applications. They are delivered in separate modules on flatbed trailers, allowing them to be placed quickly, often with existing equipment such as excavators or loaders.

Foundation options range from piling to timber to concrete. A variety of loadings from HS-20 to off-highway construction vehicle can be accommodated. Our Portable Detour Bridges are sold in both single and multi-lane widths. Additionally, these bridges can be used temporarily and later installed as a permanent structure.

Standard Features

  • Heavy duty loading
  • Galvanized steel deck
  • Lengths from 6.1 m (20') to 24.4 m (80')
  • Weathering steel structurals 
  • Bearing plates and pads
  • Curb system
  • Timber running plank
  • 4.3 m (14')width

Optional Features

  • Painted structurals
  • Special paint for coastal or tropical areas
  • Galvanized steel back walls
  • Precast concrete sills
  • Bridge rail system
  • Any width (two or more sections)
  • Bolt-A-Bin abutments
  • Clear spans up to 45.7 m (150')

Installation is often complete hours after the bridge arrives at the job site.

A variety of loadings from HS-20 to off-highway trucks can be accommodated. Our portable steel bridges, are available in both single and multiple lane widths.

Single lane typical Section

 
PortableDetourBridge-1

Multiple Lane Typical Section

PortableDetourBridge-2

Bridges 60’ and longer can also be provided with L/300 deflection, resulting in substantial weight and cost reductions.

Heavy-duty, easy to install and relocate.

Big R Portable Detour Bridge being installed
Big R Portable Detour Bridge
Big R Portable Detour Bridge
Big R Portable Detour Bridge
Big R Portable Detour Bridge
Big R Portable Detour Bridge
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