 The biggest individual project in this period , across all of rural Western Australia , was Stage 1 of the Geraldton Southern Transport Corridor . The project , constructed between March 2004 and December 2005 at a cost of $ 92 @.@ 5 million , involved the relocation of railway tracks , five kilometres ( 3 @.@ 1 mi ) worth of road works , and grade separation of roads . North West Coastal Highway 's southern terminus at Brand Highway was upgraded from a roundabout to an interchange , and an overpass was built for Durlacher Street to cross North West Coastal Highway . The highway was also made into a dual carriageway in the vicinity of the interchange . Stage 2 of the project , constructed between December 2008 and December 2009 , provided a single carriageway connection from a traffic light @-@ controlled intersection on the highway to Geraldton – Mount Magnet Road , with access to Geraldton Airport . 
