Local repair of vertical grooves Km9+700-Km10+550 and segment segment Km10+680-Km10+850, km11+00-km11+260, route DT.641; Repairing grooves along the segment of Km3+500-Km6+00, km7+00-km9+00, km13+00-km13+500 and segment segments Km3+500-Km6+00, km7+00-km9+00, km9+900-km12+00, km13+00-km13+500, route DT.642; Repair Da Loc Bridge at Km24+550 and reinforced concrete bridge at km26+493, route DT.644