Manuel S. Naval is a seasoned structural, bridge and civil engineer with a total of almost 22 years professional working experience. A registered Professional Civil Engineer in the Philippines since 1992, his specialization ranges from structural design of bridges, tunnels and buildings, construction management and supervision, bridge rehabilitation, structure design assessment and project management. His career started early immediately after obtaining the degree as a layout man in a large structural steel factory and went on to construction supervision and cost estimates of various building structures and architectural offices while doing structural design of medium to high rise buildin...