The Peak Downs Highway is a key transport route connecting the regional city of Mackay to the mining and agricultural areas of central Queensland. Eton Range is used heavily by trucks servicing the mining and agricultural industries, with a fuel tanker crossing the range every seven minutes to supply the mines within the Bowen Basin Coalfields. The range is also used by motorists travelling to and from work.
The Eton Range Realignment Project endeavoured to make the area safer by upgrading the existing range crossing to two lanes in each direction, with a split carriageway for the section of the Peak Downs Highway between Mackay and Nebo through Spencer’s Gap. The project was jointly funded by the Australian Federal Government and Queensland Govetravelrnment, receiving a total investment of $189.26 million.