North West Coastal Highway

Sealing of Shoulders - Barradale to Pannawonica Road

North West Coastal Highway is the coastal link between the south of the State and the regional centres of Karratha and Port Hedland.  As well as being a principal freight route with triple road trains (up to 53.5 m) operating north of Carnarvon, the road also provides access to various tourist destinations, mining operations and pastoral communities.

The project will provide the additional sealed width (9 m), reducing edge wear and drop off, in addition the sealed shoulders, will enable the installation of audible edge lines from Barradale (Yannarie River) to Onslow turn-off.

The section of highway north of Nanutarra to Onslow turn-off while sealed 7.4 m wide has shoulders that are unsealed, which can result in excessive wear of the natural gravels and result in sever edge drop off increasing the risk of loss of control of vehicles – a significant risk for those towing caravans and boats.

The intention is to provide sealed shoulders with audible edge lines through to Pannawonica Road. Works will be undertaken in stages.

Stage One of the project involved sealing between Barradale and 15 km south of Onslow Road intersection and was completed in August 2012, with Audible Edge Lines being installed in the first half of 2014.

Stage Two works was completed on 2 August 2015 and involved sealing between Nanutarra and Onslow Road intersection.

Further funding is being sought to deliver the remainder of works through further stages.





Modified: 27 Feb 2018