The value of Alberta's total public infrastructure increased at an average annual rate of 2.1% between 2001 and 2007, the fastest among the provinces. This brought the total value to $35.2 billion or 12% of the national total in 2007.
In 2007, Alberta had the third youngest public infrastructure in the country after Ontario and Prince Edward Island. It was however the only province where the average age of each of the five assets was consistently under the national average. Alberta's public infrastructure showed definite ageing in the 1990s, rising from an average all-time low age of 14.5 years in 1989 to 16.7 years in 1999. Since then, it has dropped sharply to 15.6 years in 2007. This drop was driven by large investments since the beginning of the 2000s.