The average age of bridges and overpasses in Prince Edward Island has historically always been younger than the national average since 1961. Between 1993 and 1996, the average age dropped from 21.6 to 6.5 years due to the construction of the Confederation Bridge. Average age has since reverted back closer to its historical range, and by 2007 had reached 15.6 years.
As with average age, the ratio of estimated useful life is also skewed by the construction of the Confederation Bridge. Estimated life use dropped from 50% in 1993 to 15% in 1996 and has since climbed back to 36% in 2007. This is still far below the national average of 57%, making Prince Edward Island the province with the smallest age-to-useful life ratio in Canada.