Dr. Samtani has performed and directed analysis, design and field investigations for a variety of multi-disciplinary infrastructure projects, including highways and bridges in different parts of the USA. Dr. Samtani has worked on geotechnical aspects of hundreds of bridges and retaining walls, several ground improvement projects, and hundreds of lane miles of flexible and rigid pavements. As part of his work he has been involved in providing pre-design, design concept, preliminary design, final design, post-design, asset management, forensic, expert consultation, research and development, and training services. Dr. Samtani has provided geotechnical engineering services for agencies from township, county, state to federal level.