Corporation of the City of Cornwall

Published purpose

The proposed project includes the resiliency improvement of a three span CPS culvert bridge structure which was deemed to be in poor structural condition. The culverts cross the South Branch of the Raisin River at McConnell Ave, which is a main arterial road adjacent to the 401 highway. The plan is to replace/improve the three combined corrugated steel pipes (CSP) that make up this structure with a single CON/SPAN concrete culvert. The goal is mitigate the risk of flooding in the area by improving the structural resiliency to stand up to the increase of severe weather events that Canada is experiencing(1). Galvanized CSP culverts are estimated to have a service life of up to 50 years(2) but a study from the Geotechnical Service Unit, Michigan Department of State Highways and Transportation evaluated results show that 10% of CSP culverts between the ages of 10-14 years old showed signs of being serious corrosion(3). To improve the resiliency of the structure, a CON/SPAN concrete