HNTB Corporation is a national transportation infrastructure firm. It offers extensive design, engineering and planning services to federal, state and local public and private clients. The company specializes in water services, aviation, rail, construction, planning, tollbooths, highways and bridges and tunnels. HNTB delivers transportation capabilities that provide local solutions, and employs trusted advisers and renowned experts that work together to uncover what is important to each client s success. HNTB Corporation is a part of the HNTB Companies, which commits technical expertise, broad experience and extensive resources that are critical to creating successful public infrastructure. Other HNTB Companies include HNTB Architecture and HNTB Federal Services Corporation. HNTB Corporation has offices in Chicago.