Prepare detailed 2D & 3D drawings for transportation projects: roads, bridges, interchanges. Create layouts, cross-sections, profiles, grading plans, signage, and GADs. Interpret engineering sketches and specifications. Collaborate with geotechnical, drainage, and utility teams. Support in cost estimation, tender prep, and as-built documentation. Follow AASHTO, ASTM, FHWA, and local DoT CAD standards.