Bridge 9149, Northbridge

Bridge Maintenance Works

Advanteering Civil Engineers

Corner of Aberdeen & Fitzgerald Streets, Northbridge

Image 1 Coating works in progress during nightshift

Description

In late 2020 Advanteering Civil Engineers, acting as Head Contractor for Main Roads WA, awarded BUSS the contract to complete bridge maintenance to Pedestrian Bridge 9149 located in Northbridge, WA. The bridge, constructed in 1999, is a 2-span steel box girder structure which carries a pedestrian footbridge over the Graham Farmer Freeway Westbound Offramp.

The BUSS team mobilised to site in January 2021 to complete the following bridge maintenance works:

  • Surface preparation, high pressure water cleaning and application of protective coatings to steelwork of bridge piers, bridge deck box section and bridge balustrade;
  • Application of Denso wrapping of bridge piers (below ground);
  • Installation of edge seal sealant between balustrade and concrete deck;
  • Surface preparation and application of anti-graffiti coatings to concrete abutments and wing walls;
  • Clear debris and vegetation on approach 2 gutters and under bridge;
  • Complete concrete repairs to bridge abutment;
  • Installation of sealant in joint cracks between panels and patch repairs to abutment 2 wing walls;
  • Installation of waterproofing system to concrete deck;
  • Complete crack repairs to surface at approach 1 and 2; and
  • Restore the line marking on the bridge.
Image 2 Coating works in progress during nightshift

Fig 2: Coating works in progress during nightshift

Image 3 Bridge pier Denso wrapping in progress

Fig 3: Bridge pier Denso wrapping in progress

Image 4 Bridge pier prior to works

Fig 4: Bridge pier prior to works

Image 5 Denso wrapping and coatings complete

Fig 5: Denso wrapping and coatings complete

PROJECT INFO

PROJECT MANAGER:

Graham Murphy

POINTS OF INTEREST:
  • The surface preparation & coating works were completed during night shift, while the freeway was closed; and
  • The works were successfully completed to schedule and on budget.

LOCATION

Bridge 9149,
Corner of Aberdeen & Fitzgerald Streets, Northbridge

Bridge 9149

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