This article is dedicated to the memory of Peta Raabe, a master in her art of Landscape Architecture.
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Janis B. Vacca, P.E., LEED AP, is a Vice President and Principal at The Harman Group. She is a member of numerous professional organizations, including the American Society of Civil Engineers, the American Concrete Institute and the Delaware Valley Association of Structural Engineers. Janis may be reached at jvacca@harmangroup.com.
