The economy ministry was last month forced to use US$300mn from an earthquake reconstruction account to maintain liquidity in the dollarized economy.
The Brazilian state-run bank will also increase financing for infrastructure projects.
After suffering the loss of several cruise ship arrivals last year due to a labor conflict, the state-owned firm is pursuing a new terminal project in a bid to win back the confidence of cruise operators.
The project, which was the subject of a failed tender last year, entails the construction of a 75,000m2 complex that will serve some 500,000 residents.
Construction on the first line of the BRT system began already in 2013, and the system is expected to finally begin operations by year-end.