Trenching, Excavation & Soil Classification Principles- A condensed Trenching, Excavation & Soil Classification Principles class designed for excavation, site utility and subcontractors working in below grade situations. This class will focus on soil conditions, inspections, classifications and hands-on mechanical inspections as well as local and neighboring states' variances. An OSHA Emphasis Program has remained in effect for excavations since 1998.Class is free for RIBA Members Non Member Cost $45.00 Materials Fee for all attendees $10.00