[2] A project to construct a levee bank across the highway on the western side of Bollon, at a cost of $1.8 million, was completed in June 2021.

[3] The Roads of Strategic Importance initiative, last updated in March 2022, includes the following projects for the Balonne Highway.

A lead project to upgrade the Townsville to Roma corridor, including sections of the Carnarvon, Dawson, Gregory and Balonne Highways and surrounding state and council roads, at an estimated cost of $125 million, commenced construction of some work projects in 2020.

[4] A project to construct a breakdown pad on the Balonne Highway at St George at a cost of $2.4 million is planned to be completed by late 2022.

[5] This project is targeted for "early works" by the Queensland Government.