Campbelltown, New South Wales


Transport for NSW



  • Roads


 2015 – 2018

Contract value

$75 – 100 million 

Narellan Road Upgrade Stage 2B

Fast facts


of the structural steelwork manufactured in Australia

10 no.

major signalised intersections

75 m

triple cable stay pedestrian bridge

100,000 vpd

vehicles per day

71 m

steel girder


First Nations People inducted on site


Seymour Whyte was awarded this ECI / construct only project involving the upgrade and widening of 7km of Narellan Road between the M31 Hume Motorway and Camden Valley Way, and from the access road to the TAFE / University of Western Sydney at Campbelltown to the Blaxland Road / Gilchrist Drive intersection. The scope of works included:

  • Construction of a new 75m triple cable stay pedestrian bridge (The erection of the main structural component – 75m long, 25.4m high and 4.1m wide bridge, was successfully erected in just four main lifts)
  • Widening the road from two to three lanes and upgrading two motorway ramps
  • Widening of an existing bridge over the Hume Motorway, in live traffic of approximately 100,000 vehicles per day
  • Upgrading 10 major signalised intersections along the route, including provision of additional lanes for both turning and through movements, lengthening of some existing turning lanes and improved access arrangements for adjacent properties
  • Relocation and protection of major public utility service
  • Significant work directly adjacent and above the Sydney Catchment Heritage Canal

Some of the benefits of Seymour Whyte’s involvement are demonstrated through:

  • Approximate saving of $2 million to the project via value engineering exercises
  • Optimised drainage design to utilise much of the existing network which reduced client costs and a reduction in traffic switches and project duration
  • Saved cost by deleting scope such as new pavement widenings, reduced asphalt volumes and drainage
  • Reuse of fill and millings on site has saved money

“Special note is made of the high performance in all bridge related technical issues, technical quality, collaboration with all stakeholders and the timing and response to queries with significant overtime required to achieve this. The bridge team has been a critical part of the successful delivery of Shared Path Bridge No.2.”

Rod Bevan, Project Advisor, TfNSW

Project gallery

Slide 1

Slide 2

Slide 3

Slide 4

Slide 5

Slide 6

Slide 7

Slide 8

Slide 9

Slide 10

Slide 11

Slide 12

Slide 13

Slide 14

Slide 15