Viaduct: The construction of viaduct’s substructure about 80% completed, contractors are under construction of viaduct’s superstructure for 12 km of viaducts will be constructed by erection segments with three laungching girders location LG1, LG2, and LG3. In which LG1 from Thao Dien to Sai Gon Bridge; LG2 from Rach Chiec Bridge to Thu Duc intersection; LG3 from Thu Duc intersectin to National University intersection. So far has completed installation of 36 spans of viaduct (about 1,260m with length of viaduct)