Lehigh University’s Advanced Technology for Large Structural Systems (ATLSS) Engineering Research Center, under the direction of Joseph T. Stuart Professor of Structural Engineering Richard Sause, Ph.D., P.E, is a national center for research and education on structures and materials of the infrastructure. ATLSS Engineering Research Center is based out of 117 Atlss St, Bethlehem, Pennsylvania, United States, in the mountain top research facilities of Lehigh University.