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HNTB Corporation is an architecture, civil engineering consulting and construction management firm that was founded in 1914. Its headquarters are in Kansas City, Missouri, but the firm has numerous offices across the United States. The firm has designed many bridges, roadways, airports, professional sports stadiums and rail and transit systems across the United States and around the world. ==Timeline== The firm started in 1914 as Harrington, Howard & Ash specializing in the design of moveable bridges. In 1941 it changed its name to Howard, Needles, Tammen & Bergendoff. In 1975 it merged with Kivett and Myers to form a sports architecture practice. In 1982, it acquired the rail firm of Thomas K. Dyer adding track, signal, communications and traction power to its portfolio, thus positioning the firm to serve the rail industry. In 1993 it formally changed its name to HNTB Corporation. In 2000 the firm became employee-owned. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「HNTB」の詳細全文を読む スポンサード リンク
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