Tunnel Engineering Handbook May 2026

The handbook is organized into that address specific engineering challenges: Key Topics Covered Site & Design

Surveillance and control systems for highway tunnels and service buildings.

: It provides detailed comparisons and design methodologies for various tunnel types, including: Soft ground and hard rock tunnels. Immersed tube and cut-and-cover structures. Water conveyance and small-diameter tunnels.

: Added seven entirely new sections covering tunnel stabilization, difficult ground, deep shafts, water conveyance, and fire life safety.

Rock tunnels, soft ground tunneling, tunnel boring machines (TBMs), and shotcrete.