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Building Better Bridges For Life

Video - 12.9m long bridge Double Lane

shows Panel two being installed ..see below

Video below - 19m long Single Lane bridge

Tax payers perspective "better than bailey"


Video below - 18.5m long Single Lane Bridge

shows panel one being installed 

Guardian prefab abutments installed before closing road;     then road closed, Pony Truss bridge removed, new prefab bridge installed in 1 day


Certified Welding Bureau

Welding Instructor

Welding Inspector

3rd Party Welding Engineer Retainer

Western University

Collaboration with Jia Xue Ph.D 

CWB  Bow String Arch

Low Truss Bow String Arch Elevation and Cross Section

Low Truss Bow String Arch Shown Above


 High Truss Bow String Arch Elevation and Cross Section Typical

 High Truss Bow String Arch Shown Above



One Lane

Width Range: 3m - 5.5m                                                                                                                            


Span Range Max: 61m - 40m

Two Lanes

Width Range: 6m - 10.5m         (20 ft. - 34 ft.)


Span Range Max: 55m - 48m    (180 ft. - 160 ft.)

Three Lanes

Width Range: 10m - 14m           (35 ft. - 44 ft.)


Span Range Max: 48m - 43m      (160 ft. - 140 ft.)








bow string arch typical cross section



NOTE: Fiberglass composite bridge deck does not require stringers from floor beam to floor beam 

 bow string arch without deck and stringers, use FRP deck to span from floor beam to floor beam







CSA W59, CSA W47

Certified Welding Bureau


Truss Connections:

  • Gusset Plates with ASTM A325 High Strength Bolts (Heavy Hex)
  • Gusset Plates with ASTM A325 Tension Control (Round Head)
  • Gusset Plates with Fillet Welds (1/4" min.)


  • Fiberglass Composite + Asphalt or Micro Slurry
  • Fiberglass Composite + Epoxy Aggregate or PolyMethylacrylate Aggregate (12mm)
  • Corrugated Steel Planking + Asphalt
  • Gang Nailed Timber Planking
  • Gang Nailed Timber Planking + Asphalt
  • Glue Laminated Timber deck + Asphalt
  • Concrete Slab on Removable Forms
  • Concrete Slab on Fiberglass Stay-in-Place (SIP) Forms
  • Concrete Slab on Steel Stay-in-Place (SIP) Forms


  • Various Truss or Slab Mounted Rails
  • Curb-mounted rails

Corrosion Protection:

  • Fiberglass Composite Encapsulated
  • Galvanizing
  • Galvanizing + 2-Coat Paint
  • 3-Coat Paint
  • Weathering Steel