Timber and concrete bridges exist throughout Australia in various shapes and forms. All of them require maintenance and the owners of these bridges are looking for cost effective means to maintain or upgrade them.

Some bridges require ongoing substructure maintenance, whilst others need deck and expansion joint maintenance and enhancements. Guardrail and safety upgrades are also common treatments.

Bridge maintenance services offered by SRG include:


  • Pile banding
  • Stringer and corbel bolting
  • Pile strengthening
  • Bolt and fastener maintenance
  • Halfcap strengthening and replacement
  • Fungicide treatment
  • End grain sealing
  • Wingwall maintenance
  • Carbon fibre wrap systems
  • Bearing replacement
  • Bridge jacking systems


  • Construction or replacement of approach slabs
  • Sill beams
  • Concrete deck overlays
  • Drainage improvements
  • Expansion joint maintenance
  • Carbon fibre laminate strengthening systems
  • External post-tensioning using strand or bar systems