Consequently, there is a major challenge in order to maintain the aging bridges efficiently and effectively (Farzam et al., 2016). 70% of the bridges in Quebec were constructed between the 1960s and 1980s. Quebec has about 9,600 bridges and overpasses where 4,300 bridges are a part of the municipal network while 5,300 bridges are a part of the provincial network. The investment in bridges is below the required level to maintain the age of bridges constant, whereas the age of bridges increased by 3.2 years from 21.3 years in 1985 to 24.5 years in 2007. There are two main reasons for the significant deterioration of bridges which are: the decrease in the public investment, and the high age of bridges. This means that 26% of the bridges were given either “Fair”, “Poor” or “Very Poor “ratings. Based on the Canadian infrastructure report card, 17% of the bridges are in a “Very Good” condition, 57% of the bridges are in a “Good” condition, 22% of the bridges are in a “Fair” condition, 3% of the bridges are in a “Poor” condition, and 1% of the bridges are in a “Very Poor” condition (Felio, 2016). Thus, they are more likely to deteriorate significantly. The grade of bridges is “C+.” The grade of roads is “D” while the grade of waste water systems is “D+”.īridges are one of the vital elements of the infrastructure systems that are subjected to aggressive influences such as overloading, chloride ingress, cycles of the freeze and thaw, earthquakes, etc. The national grade of America’s infrastructure is “D+”. Grade “A” is exceptional, grade “B” is good, grade “C” is mediocre”, grade “D” is poor, and grade “E” is failing. There is a funding gap of $1.44 trillion for funding the infrastructure in the United States.
Moreover, there is a significant increase in the risk of service disruption where one-third of the municipal infrastructure systems are either: fair, poor or very poor.Īmerican Society of Civil Engineers (2017) stated that $3.32 trillion are needed to maintain the infrastructure in a good condition which corresponds to grade “B” in the United Sates. As per Canada Infrastructure Report Card, 40% of infrastructure systems are in a “Good” condition, 40% of infrastructure systems within 20 years will be in “Fair” condition, 40% of infrastructure systems within 40 years will be in “Poor” condition, 40% of infrastructure systems within 60 years will be in “Very Poor” condition (Felio, 2016). Existing infrastructure systems are continuing to age and deteriorate and at the same time, demands for better services are growing in response to the higher standards of health. Infrastructure systems are divided into: bridges, highways, dams, waste water systems, sewer water systems, etc. Infrastructure systems are systems that support the prevailing of the society.
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