A growing number of infrastructure megaprojects worldwide are facing significant delays due to supply chain disruptions, labor shortages, regulatory hurdles, and financing gaps — a trend that could wipe out an estimated $1.5 trillion from the global economy by 2030, according to a new analysis from industry and economic experts.
From high-speed rail corridors in Europe to energy transition projects in Asia and megaport developments in Africa, project overruns have become a systemic risk to both emerging and developed markets.
Global megaprojects — those valued at $1 billion or more — are currently valued at over $25 trillion through 2030, spanning sectors such as transportation, energy, urban infrastructure, and digital connectivity. However, a recent report from the Global Infrastructure Forum (GIF) indicates that more than 60% of these projects are already behind schedule or over budget.
Economists warn that if delays continue at the current pace, the lost economic output, missed investment returns, and supply chain inefficiencies could result in $1.5 trillion in cumulative global GDP loss over the next five years.
Delayed delivery means not just postponed benefits, but also escalating costs. According to McKinsey & Company, every year of delay on a megaproject can increase total costs by 10% to 30% — which translates to billions of dollars in lost returns for governments and investors alike.
The delays also risk undermining private-sector confidence and foreign direct investment (FDI), particularly in emerging markets relying on infrastructure-led growth.
Experts are urging governments and project stakeholders to adopt new risk-sharing models, improve early-stage planning, and integrate real-time project management tools powered by AI and predictive analytics.
Public-private partnerships (PPPs) are also being re-evaluated to improve contractual frameworks that can better absorb external shocks like inflation and geopolitical risk.
Unless governments, financial institutions, and developers take coordinated action, the cascading delays across global infrastructure could become a drag on innovation, productivity, and job creation — at a time when economies are relying on megaprojects for post-pandemic recovery and long-term competitiveness.
“The stakes are enormous,” said Dr. Lina Abood, an infrastructure economist at the World Bank. “If these delays persist, the world won’t just fall behind on its infrastructure goals — it will fall behind economically.”
Bottom Line:
Delayed megaprojects are no longer isolated incidents — they are becoming a systemic threat. With $1.5 trillion at risk, the global economy faces a major hit unless urgent steps are taken to accelerate delivery, streamline governance, and stabilize the infrastructure pipeline.