
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
Silver Linings
Increasing Pandemic Resiliency
A Conversation with Sanja Zlatanic and Civil + Structural Engineer
The Accumulating Enemy
Learn about important measures that should be taken to mitigate the effects of dust in rail tunnels.
Best Practices for Long Transit and Rail Tunnels