Two projects to build rail lines on a similar route in Quintana Roo state - one promoted by the local government, and another by the incoming federal administration - could be combined.
The project involves an eight-lane highway on the outskirts of Santiago.
Alberta is likely to assume a minority stake of Iguá Saneamento and the proceeds will be used to invest in existing concessions and potential PPPs.
Previously qualified interested companies will receive invitation letters with detailed instructions about the divestment process.
The concessionaire for the São Paulo state airport is proposing to pay its debts over 25 years.
The flow of traffic on Brazil's highways is expected to recover following the negative effects of the truckers' strike in Q2.