This article will deal with the entire length of the corridor for sake of completion, as well to avoid confusion between declarations.

The elimination of the railway crossing where Dandenong–Frankston Road crossed the Pakenham railway line in Dandenong commenced in 1956, carried out by the Dandenong Shire Council, with assistance from Victorian Railways and the Country Roads Board,[2] and completed in 1957, with the eastern half of a four-lane overpass over the railway completed and open to traffic in September, and the western half completed not long afterwards.

[3] The entire alignment (as its constituent roads) was signed as Metropolitan Route 9 between Wantirna and Frankston in 1965.

The passing of the Transport Act of 1983[4] (itself an evolution from the original Highways and Vehicles Act of 1924[5]) provided for the declaration of State Highways, roads two-thirds financed by the State government through the Road Construction Authority (later VicRoads).

Two pedestrians had been killed in the previous six years, with the local council calling for additional safety measures such as a pedestrian crossing or overpass for access from the western side of Stud Road across to Dandenong Stadium.