Amsalu Duressa, P.E. MSCE, more than 15 years experience in geotechnical engineering, construction management, environmental and construction services. He has experience providing geotechnical analysis and design on projects throughout Maryland and District of Columbia. In addition, his experience includes research and technology transfer related to concrete mix design and destructive/non-destructive concrete testing for the Federal Highway Administration and environmental investigation and testing.

M. Suri Surendra, P.E . Ph.D, more than 20 years experience in geotechnical engineering, construction management, drilling, and geotechnical instrumentation throughout the Maryland area. He is experienced in geotechnical investigations, load tests on pile foundations and drilled shafts, instrumentation of highway embankments, evaluating in-situ ground improvement techniques. His experience also includes various aspects of construction inspection, field and lab material testing, quality assurance and quality control, construction management for building and highway projects. He has evaluated subsurface conditions throughout Maryland in the various geologic settings and has experience on numerous MD SHA projects.