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CIPP CULVERT REHABILITATION
PROJECT NAME: REHABILITATION OF CULVERTS ON HIGHWAY 41
LOCATION: HIGHWAY 41 IN CLOYNE, ONTARIO.
OWNER: MINISTRY OF TRANSPORTATION
START DATE: JUNE 2009

This project consisted of the cleaning of over 90 existing CSP highway culverts from 450mm to 1200mm in diameter, and the CIPP rehabilitation of 11 of these culverts. The work was conducted on Highway 41, a busy highway for cottagers and an entrance way to Bon-Echo Provincial Park. To protect the water courses, sediment control barriers were used, and the liners were steam cured to prevent spills of cure water into the environment.

CWW has the ability and the proven experience to complete the rehabilitation of culverts where access to only one extremity exists. In the case where the inlet or the outlet is inaccessible due to the presence of trees, a steep drop, or swampy grounds, the CIPP liner can be installed entirely from the other extremity. The major advantage is the reduced costs typically associated with the building of temporary access roads. Through the application of proven and tested CWW rehabilitation methodologies, access roads to either end are not required. In addition, the rehabilitation solution is non-invasive and environmentally responsible. Trees are undamaged, and water streams, fish, animal habitats, and the surrounding environment are undisturbed.

For this project, traffic disruption was minimal, and the culvert rehabilitation was completed in 11 days, a significant advantage over conventional dig-and replace methods which typically require weeks of complete road closures and detours.