Plans, directs, coordinates, inspects and supervises the work of professional and sub-professional engineering staff engaged in field and office civil engineering work involving material testing, construction inspection of roads, bridges, buildings and related structures for conformance to design specifications; directs and supervises a variety of survey projects and traffic engineering studies; acts as agent for the County in negotiations with contractors, consultants, other agencies and the public; supervises and performs technical and professional work including preparation of plans, specif