Average age of sanitary and storm sewers in Newfoundland and Labrador has been steadily increasing since 1983. The rate of increase has also been accelerating in the last decade due to low rates of investments in this asset. The average age went from 14.7 years in 1983 to 20.9 years in 2007, the oldest among all provinces.
As a percentage of estimated useful life, storm sewer infrastructure in Newfoundland and Labrador has been ageing faster than the national average since 1996 when both rates were the same. In 2007, the provincial rate has reached 62%, 9 percentage points above the national figure.