Repair of road surface, drainage ditch, segment of Km407+600 ÷ Km410+400 and repair the expansion slots: Tung Tong Km385+484; Dong Dang Km397+500; Insert Rén Km399+627; Slot km399+798; Donut KM400+073; Trees km401+012; Grapefruit tree Km402+858, Highway 15, Ha Tinh Province