- Construction cost
- 6,5 M$
- Duration
- 22 months
- Schedule
- October 2018 to July 2020
- Disciplines
- 1 trades
- Client
- City of Montreal / Loiselle Inc.
- Location
- City of Montreal
- Project type
- Client project
At a glance
Project description
The project consisted of the replacement and redevelopment of the 48-inch and 60-inch diameter drinking water supply and distribution pipes, cleaning, disinfecting and installing wall valves inside different cells of the water reserve, and the construction of new valve chambers.
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Project challenges
- Oversized project: 48-inch diameter pipes
- Installation of cofferdams in the cells using divers in order to install the wall valves in dry conditions
- Welding of pipeline sections on site
- Cleaning and disinfection of the cells of the 150 km3 reservoir affected by the work of installing wall valves and sleeves
- Maintaining the pumping station in operation during the works
Services provided
- Construction
Disciplines
Group division
Delivered with CWA Process Engineering
The process-mechanical expertise on this site comes from CWA Process Engineering, the Groupe ALLEN division dedicated to water infrastructure. Drinking-water mains of 48 and 60 inches, wall valves installed in dry conditions and the return to service of the reservoir cells all demand full command of the drinking-water chain.
- Drinking water
- Process mechanics
- Pumping station
- Water distribution networks
- Wall valves
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