Work is progressing on the upgrade of the New England Highway at Bolivia Hill with the Joint Venture starting on the second stage of the road bridge.
The construction of a new bridge over the Kwinana Freeway, at one of Perth's most congested areas is now underway.
The federal and NSW state governments have allocated $250 million for the proposed Richmond Bridge duplication.
Local contractor McInnes Earthmoving have begun to build access tracks and piling pads at the Avon River Bridge site.
Construction of a second river crossing between Victoria and New South Wales at Echuca and Moama is set to begin in 2020.