Project overview

With Logan’s population set to continue growing, we are investing in our roads to ensure they are fit for purpose, now and well into the future.

As a vital east-west link, this upgrade to Chambers Flat Road is improving safety, flood resilience and travel conditions for everyday users.

We have upgraded 3.8 kilometres of the road from Mount Lindesay Highway, Munruben to just north of Kings Way, Chambers Flat.

Traffic is expected to increase significantly over the next 20 years due to residential and business growth. The upgrade allows Chambers Flat Road to safely accommodate future traffic demands from local and adjoining development areas.

Chambers Flat Road currently carries approximately 19,000 vehicles a day.

This figure is expected to rise by 47 per cent to approximately 28,000 vehicles a day.

Project features

• 3.5-metre-wide traffic lanes and 3-metre-wide sealed shoulders (asphalted to provide a safer, smoother road with reduced tyre noise impacts for residents)
•  a new bridge over Norris Creek (up to 8 metres higher than the existing culvert)
• improvements to the intersections at Kings Way and Greenvale Road including dedicated turning lanes from Chambers Flat Road
• upgraded Grevillea Road and Norris Creek Road intersections
• improved sight lines at bends and crests
• new stormwater drainage
• A variety of wildlife devices including fauna fencing, escape poles, culvert crossings and nesting boxes.

Norris Creek Bridge

Modelling was undertaken during design of the new Norris Creek bridge for both local storm and regional flood events, to ensure future flooding impacts are mitigated.

According to the modelling, during a 1-in-100-year Norris Creek storm event, water levels are expected to peak below the bridge. During a 1-in-20-year Logan River flood event, backwater would push up Norris Creek from Logan River, with water levels expected to peak under the bridge road level. A more severe flood would overtop the bridge, according to the studies.

With the existing culverts removed and the bridge and associated earthworks constructed, modelling indicates no adverse impacts during events up to and including the 1-in-100-year storm and regional flood.

View the Norris Creek Bridge construction progress on Facebook

Chambers Flat Road bridge install video transcript

The height of the new bridge over Norris Creek meant that Chambers Flat Road and Greenvale Road remained open during ex-Tropical Cyclone Alfred. At its highest point, flood water only reached two thirds up the 10-metre-high pylons.

The location of the former low-level road crossing over the creek was well and truly inundated.

Project benefits

The upgraded road: 

• improves safety as traffic increases 
• improves sight lines for crests and curves 
• unlocks local bottlenecks for more reliable travel times 
• improves flood resilience of Chambers Flat Road and the intersections with Greenvale Road and Norris Creek Road  
• contributes to a well-managed road network to improve access and economic opportunity. 

Related projects

• Crowson Lane Extension, North Maclean (Mount Lindesay Highway to Teviot Road)
• New Beith Road and Goodna Road Upgrade, Greenbank
• Teviot Road Upgrade

Contact us

If you would like more information about the project, please:

• call our Project Engagement Team on 07 3412 3412
• email us at RoadComms@logan.qld.gov.au or
• write to us, please address your letter to:
  • Road Infrastructure Delivery - Chambers Flat Road Upgrade
    Logan City Council,
    PO Box 3226,
    Logan City DC, QLD, 4114.

Our project team will respond to community questions as soon as possible.

To gain a broad view of road, drainage and associated works across Logan City, please visit our roads and infrastructure web page .