Since 2001, investments in roads in Quebec have been higher than at any time since the mid-1970s. This infrastructure accounted for 62% of the total public asset stock in 2007, making it the largest public infrastructure investment in the province. Strong investments and the discarding of older investments since 2001 have resulted in a significant lowering of the average age, from a peak of 18.6 in the 1990s to 15.2 years in 2007.
While above the national average, Quebec ranked fourth with New Brunswick in terms of youngest road network. As a percentage of estimated useful life, Quebec rate was at 66% in the 1990s, compared to 60% nationally. The gap has narrowed to only one percentage point by 2007 with rates of 54% in Quebec and 53% nationally.