The engineering of movable bridges defines our history, showcasing forward-thinking innovation. We are sought after throughout the world as a leader in the engineering of these complex structures. H&H has unmatched experience and depth of resources to deliver the peace of mind that your movable bridge is in the most qualified hands.
H&H has designed more than 65 vertical lift bridges, 80 bascule bridges, and 30 swing bridges with span lengths ranging from 15 feet to 550 feet. We are adept at solving the unique engineering challenges that movable bridge rehabilitations present. In fact, our reputation in movable bridge engineering has put us on the speed dial of clients throughout the United States and abroad.