There were over 200 public-private partnerships launched in the first eight months, according to a consultancy firm.
Beto Richa was arrested on allegations he benefited Odebrecht in the bidding for a highway PPP.
The country's public works minister said that the government wants to give a "new dynamic" to the Metrobus initiative, which entails both a BRT corridor and urban reconversion works.
The goal is to help concessionaires secure financing, among other things.
The new transport minister said that the Magdalena river navigation project left by the previous administration needs to be changed, but that doesn't mean "starting from scratch."