Resin Liner Saves Millions in Project Cost
The rehabilitation of the Rideau River Interceptor Sewer in Ottawa is partly completed using cured-in-place technology.
The City of Ottawa faced a huge project management challenge – including prohibitive cost concerns – two years ago when they planned replacing manholes along a sewer line deep beneath the west bank of the Rideau River. Until recently, the project to replace the manholes and original clay sewer line (constructed in 1899) was put on hold. A 500 meter section was repaired in 2009 but another 2 kilometres under the river, Queensway and river park shoreline needed replacement. Needless to say, several environmental impact studies and permits would be required before construction even started.
However all that proved to be unnecessary using “cured-in-place pipe liner which inserts a new, flexible resin liner into the old pipe, essentially putting a new modern pipe inside the fragile old one. Thanks to the City of Ottawa staff (Rick Legault) and competent contractual staff (Veolia Environmental Services) the job is now well underway and is expected to cost about 75% less than originally anticipated (i.e. full construction costs).
Full Story: Ottawa Citizen
RoadMap: Video of project in the Ottawa Citizen
CentreLine: Knowledgeable, resourceful Municipal and contractual staff are the best solution to satisfactory project completion.
Tags: CIPP, City of Ottawa, Cured-in-place pipe liner, Veolia