The group is offloading stakes in power generation and service companies, an airport concession and a port terminal.
Utility Sedapal is the latest company to tot up damage caused by record flooding in the country, with repairs needed at treatment plants, pipelines and wells.
A hydroelectric developer targets northern La Libertad region for new project.
The group cites a stronger performance by its highway and airport concessions and its construction business.
Transport ministry says process will start next week and that new tenders will be launched to ensure continuity of highway project.
Health authorities in Ñuble province are seeking a contractor to design and build a new, 530-bed hospital.
Backed by solid credit and urgent need for projects, the nation's infrastructure sector will likely weather the current GDP downturn and move forward in the coming years.
The US$385mn transaction remains subject to conditions and approval from Brazilian competition authority Cade.