LSPA's Emerging Professionals Committee hosted a Soils Classification event last week at GZA GeoEnvironmental. Zachary Baum, P.E., a Geotechnical Engineer at Tighe & Bond, gave a brief overview of the Modified Burmister System, focusing on different soil types and the corresponding grain sizes. Fun Fact:  The numbers given to various sieve sizes are equal to the number of holes in the sieve per inch.  Zach passed around small bags containing various soils, so everyone could get a “real-world” sense of the look and feel of each soil type. Participants then had the opportunity to get their hands dirty and team-up to classify four soil samples that had been lab analyzed for the “right” answer.  We had great turnout of 35 people, and participants were engaged both with the subject matter and one another. Here are some photographs of the event. Thanks to GZA for hosting and to Zach for his enlightening presentation.