Ontario's public infrastructure stock amounted to $93.3 billion, or 33% of the country's total. In 2007, the province had the youngest public infrastructure in the country, averaging 15.4 years. The province was followed closely by Prince Edward Island and Alberta which also recorded average ages below 16.0 years.
In Ontario, there has been a clear renewal of the five public infrastructure assets since the early 1990s. On average, the age of its overall pubic assets was 15.4 in 2007, down from 17.4 years in 1994. This reduction was driven mainly by large investments in roads as well as in the water supply systems.