Repair damage to the foundation, road surface, vertical drainage system, reinforce roadbed slopes and traffic safety system in section Km3+600 - Km3+974; Km4+274 - Km5+700; Km32+554 - Km33+000; Km38+350 - Km39+700; Km58+000 - Km60+300 and Repair, reinforce curbs, road signaling system at school entrance gates on National Highway 49B from Km5-Km39, Thua Thien Hue province