Tilcon Connecticut, founded in 1923, is a supplier of crushed stone, hot-mix asphalt and ready-mix concrete. The company provides heavy and highway construction and paving services for state and local road, bridge and highway projects. It manages a barge transportation division, Buchanan Marine, which delivers more than 5 million tons of stone by water to New York City and Long Island in New York annually. Tilcon Connecticut also handles earthwork and site improvement projects. The company serves clients throughout Massachusetts and Connecticut. It undertakes projects for golf courses, shopping malls, corporate headquarters, schools, office complexes, and manufacturing and recreational facilities.