Repair and restoration work on sections from Km 112+283 to Km 112+307, Km 114+898 to Km 114+907, Km 114+972 to Km 114+987, Km 115+313 to Km 115+332, Km 115+349 to Km 115+373, Km 116+567 to Km 116+600, Km 117+994 to Km 118+33, Km 118+229 to Km 118+254, Km 122+776 to Km 122+832, Km 123+733 to Km 123+802, Km 126+952 to Km 126+975, Km 134+490 to Km 134+610, Km 137+891 to Km 137+920, Km 139+31 to Km 139+108, National Highway 48D, Nghệ An Province