The new attempt comes after a June auction which failed due to lack of investor interest.
Prosecutors are investigating wrongdoings by highway concessionaries in Paraná state.
Brazil's largest city will receive studies on improving the management of reservoirs to mitigate the effects of flooding and for the construction of new ones.
The projects include 6,000km of roads to be executed under the PPP model, expansion works at five airports and the start of the Vaca Muerta rail link.
The infrastructure sector, however, still doesn't show signs of recovery.
Three companies obtained loans from the Brazilian development bank.