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Darel Mesher, PhD, Peng

Tetra Tech TAS Inc.

Dr. Mesher is the Chief Technical Officer for Tetra Tech Inc. With a background in Electrical Engineering and with Tetra Tech For more than 30 years, he has specialized in the development of non-destructive testing technologies for all modes of transportation infrastructure with particular focus on artificial intelligence, data processing and analytics and the development and application of emerging and innovative technologies for rail applications.