Dur-A-Span™




Lightweight, strong and corrosion/abrasion resistant, AIL's Dur-A-SpanAluminum Structural Plate has been going the distance in over 1,000 structures worldwide for many years - beating the usual heavyweight contenders, like precast concrete, on overall performance and cost. And now, thanks to our innovative reinforcing rib technology, Dur-A-Spancan go even farther (and wider) to out perform all challengers. The proven strength, economy and longevity of Dur-A-Span are ideal for coastal or remote installations.

 

  • Corrosion/abrasion-resistant solid aluminum alloy
  • Ideal for soft and salt water applications
  • Virtually maintenance-free
  • Design service life of 75+ years
  • Spans of 12.2 m (40') and greater are available
  • Corrugation profile of 230 mm (9") pitch x 64 mm (2 1/2") depth

 

 

Box CulvertsArchesRoundsPipe ArchesEllipsesPear Shapes



    Download Dur-A-Span Brochure (486k)

 

 

Typical Applications:

  • Stream and River Crossings
  • Culverts and Storm Drains
  • Soft and Salt Water Applications
  • Road Salt and Other Storage Structures

Successful Projects
with Dur-A-Span