The Main Roads Board was an agency of the Government of New South Wales, responsible for planning, constructing and maintaining road infrastructure in New South Wales, Australia.
It took over responsibility of the New South Wales road network from local councils.
[1] It also took over the council's loans from the New South Wales Treasury.
[2] The MRB ceased to exist on 22 March 1932 with its functions transferred to the Ways & Works Branch.
[5] From 1929, Main Roads was the MRB's inhouse journal that was published quarterly.