The Ruta 160 highway is a 90km toll road between the Arauco province and the city of Concepción.
The power failure was caused by heavy rain in the center-south regions of the country. At one point 300,000 families were without electricity.
Sabesp's profits fell by 58.4%, as expenses picked up 5.1% in the second quarter.
Rio de Janeiro state plans to privatize Cedae to compensate for drop in tax collection
Copper, zinc, lead, silver, tin, iron ore and molybdenum all posted gains in June, helping push June GDP growth to its highest since the start of the year.