The country hopes to line up US$5.6bn in private-public partnership infrastructure concessions in 2018 after rising metals prices bolstered the country's mining-dependent economy.
The government of the Brazilian state will invest nearly US$8mn in the works.
The remark was made by Rafael Hernández, head of the special legislative committee that was created to oversee the construction of the new airport.
The Roca train service now runs between the Constitución terminal in Buenos Aires and the city of La Plata, cutting travel time from 80 to 55 minutes.
So far this year, the government has invested 13.6bn colones (US$24mn) to upgrade various local airports and airfields throughout the country.
Senator Jorge Robledo accused prosecutor general Néstor Martínez of being involved in the Odebrecht bribery scandal and announced he will take this case and separate judicial bribery revelations to the Inter-American Commission on Human Rights.
The bill, which still needs to be approved by other committees, would allow PPPs for smaller projects.