The inauguration of the Barapullah elevated road, expected on September 14, has been delayed by a week.
The Delhi government's Public Works Department, which is constructing the road as a dedicated corridor to link the Games Village with Jawahar Lal Nehru Stadium and the south Delhi venues, said the project will be over by September 20.
PWD Principal Secretary K.K. Sharma said on Wednesday that out of 24 flyovers and underpass projects related to the Games, 16 have been completed and work on eight is on.
The Salimgarh bypass will be inaugurated on September 11 and flyovers on the UP Link road will be complete by this month-end.
Sharma said the delay in the projects was due to certain agencies, such as the Delhi Urban Art Commission and Railways, which had not given clearances for some project designs. The projects were later cleared by a Group of Ministers.
The PWD has also defended the quality of its construction work. During an inspection, the Central Vigilance Commission had found poor construction quality in five PWD projects and had taken core samples from sites at Naraina and Ghazipur.
The PWD said a separate third-party examination of the samples carried out at private labs, the construction quality was not found sub-standard.
PWD Principal Chief Engineer A.K. Sinha said the lacunae found in the reports of the private labs were not serious and that work was up to the mark.
Delhi government has also filed its reply to CVC's queries on the quality of work at these five projects.