CIPP SEWER REHABILITATION
PROJECT NAME: REHABILITATION DE CONDUITES D’EGOUT 2009 – LOT 1
LOCATION: VARIOUS STREETS ACROSS QUEBEC CITY
OWNER: QUEBEC CITY
START DATE: MAY 2009

This project consisted of over 2,200m of CIPP sewer rehabilitation, ranging in diameter from 200mm to 900mm, including the replacement of several manholes and sewer sections. The excavation aspect of the project was sub-contracted to a local contractor and managed by CWW.

Quebec City had a series of additional road reconstruction projects underway in the vicinity of our lining, which required precise scheduling on our part to avoid and eliminate any potential conflicts.

Several of the sewers slated for rehabilitation were located on high traffic volume streets, which required the submission, approval, and implementation of complex traffic control plans. The most challenging part of this project was the rehabilitation of a 900mm CSP storm sewer outfall. The outfall consisted of two 100m sections, with the downstream situated halfway down a steep, rocky ravine, and several meters above the Rivière De-Cap-Rouge. These two sections were cured with hot water; and due to exacting environmental requirements, the cure water had to be pumped from the liner upon completion and transported for treatment.

All of the liners were wet-out (resin impregnated) in our facility in Ottawa and transported in a refrigerated truck to Quebec City. The 450mm diameter and smaller liners were inverted with air and steam-cured. Larger diameter liners were inverted and cured with water.
With the existence of two CWW steam-cure units and one hot water boiler unit in our fleet, we had the flexibility to meet the tight scheduling requirements.