Since maverick bridge designers founded the firm in 1914, HNTB Corporation has designed some of the world's longest spans, most inventive lift mechanisms, and most elegant cable-stayed structures. Effective design unites function, form, economy and durability. The firm's commitment to creativity has produced award-winning bridges that span the globe.
Because HNTB understands the substantial community investment involved in building underground structures, the firm also develops creative and effective tunnel solutions that minimize disruption to surface infrastructure and maximize the tunnel's lifespan. HNTB's experience encompasses the design, construction and restoration of soft ground, rock and underwater tunnel crossings.
HNTB bridge and tunnel services include:
- Long-span bridge design
- Short-span bridge design
- Segmental bridge design
- Movable bridge design
- Railroad bridge design
- Interchange and viaduct design
- Tunnel design
- Bridge inspection and rehabilitation
- Seismic retrofit services
- Bridge replacement
