Seth Mascho, P.G., joined the firm in 2014 as a Project Geologist and was promoted to Geotechnical Group Manager before stepping into his current role as Director of Transportation Services in January 2022. Seth has over 17 years of experience in transportation-related geotechnical engineering.

Seth holds a Bachelor of Science in Geology from Edinboro University of Pennsylvania and has been a Licensed Professional Geologist in Pennsylvania since 2014. Seth’s duties include project management, operational oversight, and client and staff development. In January 2024, Seth was made a Senior Associate. 

He participates in the Susquehanna Civil Career Development Committee, and Training & Development Committee and is part of the Quality Assurance Team.  Seth is also a member of the ASHE Harrisburg Section and ACEC/PA.