The Colombian capital's finance committee approved some US$80mn for the Usme hospital, the tender for which is expected to be launched this year.
Brazil's development bank hired a consortium to explore commercial options for the best use of the river's water.
The Brazilian highway concessionaire enjoys stable cash flow, according to Moody's.
The decision caused widespread discontent among port representatives of Atlántico department, which had hoped that the resources to restore navigable conditions on a 908km stretch of the Magdalena river would be secured before the change of administration.
The contracts were awarded to a consortium also compromising Argentine partners Panedile, Eleprint and Copasa, and are part of the country's US$30bn PPP program.
The project involves an eight-lane highway on the outskirts of Santiago.