Tunnel construction market projected to reach $162.68 billion by 2030

The global tunnel construction market is forecast to grow from $120.26 billion in 2026 to $162.68 billion by 2030, driven by urbanization, infrastructure spending and demand for underground transport, utility and water systems. Asia-Pacific held the largest share in 2025 and is expected to remain the fastest-growing region.

Why it matters: - Tunnel construction is becoming a bigger part of global infrastructure spending as cities, transit systems and utilities move underground. - The market’s growth signals more demand for rail, metro, water and wastewater, drainage and mining projects that require subterranean access. - Faster adoption of automated excavation, safety monitoring and prefabricated components could reshape how large tunnel projects are delivered.

What happened: - The Business Research Company released its Tunnel Construction Market Global Market Report 2026 – Market Size, Trends, And Forecast 2026-2035. - The report projects the tunnel construction market will rise from $111.07 billion in 2025 to $120.26 billion in 2026. - The market is forecast to reach $162.68 billion by 2030. - The report says the market will grow at a 7.8% CAGR from 2026 to 2030.

The details: - Recent growth has been driven by urban development, government funding for transportation infrastructure, underground utility demand, water management needs and mining expansion. - The report defines tunnel construction as the planning, designing, digging and building of tunnels underground or underwater through soil, rock or other geological materials. - The work requires specialized engineering, construction methods and equipment to support structural integrity, safety and long-term performance. - Sustainable underground infrastructure, high-speed rail and metro tunnel investment, smart city projects, urban traffic control and resilient infrastructure are listed as major growth supports. - The report highlights automation in tunnel excavation, geotechnical monitoring, prefabricated components, advanced ventilation and environmental control systems, and stronger tunnel reinforcement as key trends. - Expansion of water and wastewater infrastructure is another major driver because tunnel construction supports underground pipelines, sewer systems, drainage channels and water conveyance networks. - Ireland’s Central Statistics Office reported in May 2024 that the number of registered domestic wastewater treatment systems rose 1.1% in 2023 to 492,359 units. - The regional analysis covers Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, the Middle East and Africa. - Asia-Pacific held the largest share of the market in 2025 and is expected to be the fastest-growing region in the coming years.

Between the lines: - The forecast points to a broader shift toward underground infrastructure as a response to congestion, land constraints and aging utility networks. - Water and wastewater investment stands out because it ties tunnel demand to public health and sanitation, not just transport construction. - The report’s focus on automation and monitoring suggests project owners are looking for faster builds and lower safety risk in complex ground conditions.

What's next: - The market’s next phase will likely be shaped by continued investment in rail, metro and utility corridors. - More projects are expected to emphasize durability, environmental control and structural reinforcement as tunnel networks expand. - The Business Research Company said its 2026 reports include market attractiveness scoring, TAM analysis, company scoring matrices, Excel forecasting dashboards and hotspot infographics. - The company also provided a free sample report and the full tunnel construction market report.