A new report from the nation’s infrastructure advisory agency is warning of massive workforce shortages jeopardising hundreds of billions of dollars in infrastructure, housing and energy projects across the country.

Infrastructure Australia’s annual market capacity report has revealed there are only 177,000 workers currently in the system despite there being enough demand for the equivalent of 405,000 workers.

The agency is also sounding the alarm over shortages of construction materials, with parts of the country struggling to access enough steel, rock and sand supplies for major projects.