HNTB Companies is a multidisciplinary firm known and respected for our work in transportation, bridges, aviation, architecture, urban design and planning, environmental engineering, water and construction services. "Founded in 1914, HNTB has built a reputation for excellence and innovation in the transportation industry by designing movable bridges, the first modern turnpike and a significant portion of the U.S. interstate system." HNTB offices in Ohio are located in Cincinnati, Cleveland & Columbus.
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