by David Jenkins
Australia and New Zealand are entering an essential decade for infrastructure. Governments are investing record sums in transport, water, regional growth, and climate resilience. Australia’s infrastructure projects now total over $230 billion, while New Zealand will need more than NZ$200 billion over the next 30 years.
While the physical evidence of investment is obvious, the human capability required to sustain and execute these projects poses some challenges. The people who design, maintain, and renew our infrastructure are leaving faster than new workers are joining.
As many as 40 per cent of Australia’s engineers may retire or leave full-time work in the next decade. Local governments, which look after about a third of public infrastructure, are especially vulnerable. The problem isn’t a shortage of expertise. There’s a shortage of people to take over.
Public works engineers deliver the systems Australians use every day: safe drinking water, reliable roads, flood protection, waste services, and public spaces. These projects may not be glamorous, but they are vital for health, the economy, and social life.
The real challenge is how people view this profession. Private sector projects dominate graduate aspirations. They offer prestige, scale and visibility. Local infrastructure, by contrast, is often regarded as routine or administrative, despite its enormous societal impact.
This is a branding issue for one of today’s most important professions.
It’s outdated to think young professionals only care about salary and status. More and more, data shows graduates want purpose, flexibility, and a real chance to help their communities.
Public works engineering offers all these things. It provides broad technical experience, lasting results for communities, and a direct role in tackling climate resilience and sustainability. Still, the profession struggles to share this story in a way that attracts new talent.
Engineering enrolments are still strong, but not many people know about careers in public infrastructure. Many students graduate with little experience in asset management, infrastructure planning, or community-focused engineering.
Work-integrated learning, regional placements, and industry partnerships are helping students get job-ready. But recruitment will stay weak unless we present infrastructure as a career that shapes communities, not just physical assets.
Career development matters just as much. Young professionals want varied career paths, the chance to move between roles, and opportunities to keep learning. Traditional, top-down career models no longer fit today’s workforce.
Digital twins and predictive analytics are transforming how we manage infrastructure. Instead of replacing engineers, these tools are changing the nature of their jobs.
In the future, public works professionals will spend less time designing individual assets and more time managing complex systems, analysing data, and balancing social, environmental, and financial needs. The profession is shifting from building infrastructure to coordinating it.
Climate change, urban growth, and fairness across generations are prompting us to rethink how we value infrastructure. Roads, drainage, and water systems are no longer just engineering projects. They now shape liveability, safety, and social inclusion.
Public works engineers are now at the heart of these outcomes. Their job is becoming as much about building strong communities as it is about technical skills. The greatest danger facing infrastructure is not funding or technology. It is the risk that society underestimates the human capability required to sustain it.
When infrastructure fails, it makes the news. When it works, most people don’t notice. But our prosperity depends much more on systems that quietly do their job than on flashy projects.
Australia and New Zealand have a clear choice to make. We can see infrastructure as just a cost, managed by fewer workers, or as a nation-building investment supported by skilled, forward-thinking professionals.
If we choose poorly, the consequences won’t appear immediately. Instead, problems will slowly and quietly build up, causing high costs across the systems that hold our communities together.
