It does vary based on several variables.
Some of it could be due to pressure of economic activity and population growth. The climate, the north, and the changing climate of the north, is a different variable on the pressure of the infrastructure in that area.
Generally speaking, the infrastructure deficit is greater in the east because the infrastructure is older. The cities are older. You can look at Montreal's infrastructure as opposed to Calgary's. There are different generations of infrastructure investment because of the nature of the way this country was developed.
So yes, it varies across the country according to several different variables.