The cost of Brisbane City Council’s signature Brisbane Metro mega-bus project - which once had a budget of $944 million - has blown out by $200 million.

The council’s other signature project – turning Kingsford Smith Drive into a six-lane entry to the city – is now almost a year overdue, with plenty of work unfinished.

The four-year Kingsford Smith Drive project is now almost a year overdue and there is a lot of work to be completed by "the second half of 2020." Credit:Tony Moore

Brisbane Metro has quietly added another $100 million to its costs since February 2020 to allow buses from West End and South Brisbane to access the underground station.

Previously, in November 2019, an extra $100 million was added to the cost to finance the electric buses chosen for the mega-bus project.