From the 1950s, increasing development between Perth and Geraldton saw the planning and establishment of a road network linking Dongara and Gingin – though the roads were not initially intended to become a highway. Early surveying of the roads, in the 1950s, was undertaken from within a light aircraft flying over the area. This was one of the first times in Western Australia that this technique was used. Wide road reserves, up to in width, were acquired from crown land and pastoral leases. This allowed native wildflowers to survive and flourish on public land, providing aesthetically pleasing and interesting views to reduce road hypnosis and driver fatigue. The road would also be made safer by removing natural roadside obstacles, and replacing them with shrubs and more wildflowers.