HNTB experts have the insight on tunnel ventilation and safety and knowledge to provide innovative solutions on a wide range of tunnels, including cut-and-cover, tunnel boring machine tunnels, conventional tunneling, NATM, immersed tube tunnels, shaft construction and micro-tunneling.

Deep Thinking, Underground Solutions

  • Planning
  • Design
  • Project Management
  • Tunnels, Underground & Structural Engineering
  • Geotechnical engineering
  • Geology/Hydrogeology
  • Construction Management & Engineering
  • Tunnel Inspection
  • Instrumentation and Monitoring
  • Tunnel Rehabilitation
  • Ventilation & Fire Life Safety
  • Operations & Maintenance


Featured Tunnel Projects

Tunnel News and Insights