In this paper, the authors examine in detail trends in public and total infrastructure investment in six large Latin American economies, and their relationship with fiscal policies since the early eighties. They argue that post-crisis fiscal frameworks, notably fiscal rules, increasingly popular in the region, should not only consolidate the recent progress towards fiscal sustainability, but also create the fiscal space required to close the infrastructure gaps. They illustrate the importance of these arguments with a detailed account of recent developments in the fiscal framework and public investment in some of the main economies in Latin America, which could represent good practices for the region and for other developing economies.