IMF issued revised economic growth projections for Latin America and the Caribbean.
The investment includes major projects such as Mexico City's new international airport and the Mexico-Toluca interurban passenger train.
Metroagua's contract to provide water and sewerage services in Santa Marta expires in April and the city government has said will not be renewed.
Based on potential irregularities, the audit court's decision came after some four months of deliberation and affects highway concessionaire Concer.
The largest project is the US$1.4bn Veracruz port expansion.
The tenders are for works in state capital São Paulo as well as the cities of Santa Isabel, Berueri and Carapicuiba.