Principal at The Di Salvo Ericson Group, Structura... Professional Structural Engineer with 30 years of experience, 27 years with the Di Salvo Ericson Group, Structural Engineers, Inc. in Ridgefield, CT where I... Professional Structural Engineer with 30 years of experience, 27 years with the Di Salvo Ericson Group, Structural Engineers, Inc. in Ridgefield, CT where I have been an owner and principal since 1995.