Location
Edmonton, Alberta
Expertise
Infrastructure
Pipelines
Wastewater Collection & Storage
Share
The North Saskatchewan River flows southwest to northeast through a 22 kilometre valley in the City of Edmonton; the largest stretch of urban parkland in North America.
It supplies drinking water for Edmonton and dozens of downstream communities. The City of Edmonton, like most pre-1940 municipalities, is serviced in part by combined sewers.
These sewers occasionally overflow into the North Saskatchewan River in heavy rains. The Rat Creek outfall was responsible for 60%~80% of the City of Edmonton’s combined sewer overflow volume, 3.2-billion litres per year, affecting water quality in the North Saskatchewan River and raising safety concerns in Edmonton and beyond.
The $44-million West Edmonton Sanitary Sewer Tunnel W12 across the North Saskatchewan River connects the Rat Creek combined trunk to the South Highlands Interceptor and then to the Gold Bar Wastewater Treatment Plant. This was expected to reduce the CSO discharges into the North Saskatchewan River by up to 80%, significantly improving water quality.
Project Highlights
More Infrastructure Projects
See all projects
Infrastructure
Kluskus Village Domestic Water System Improvements
Infrastructure
Heavy Rainfall Event Disaster Recovery
Pedestrian Bridges
Dayton Street Pedestrian and Cycling Overpass
Infrastructure
Johnston Canyon Campground Upgrades
Airports
Inuvik Airport Runway Extension and Airside Civil Infrastructure Improvements
Infrastructure
Fort Chipewyan Little Lake Residential Expansion
Airports
Christina Lake Infrastructure Upgrading
Infrastructure
Irrigation Sustainability and Water Balance Seepage Assessment Study
Transportation
Sutherland Ave Pedestrian Bridge
Environmental
Tlichǫ Cultural Commons Digital Database
Infrastructure
Tsawwassen Mills Mall
Land Use & Community Planning
Glory Hills Area Structure Plan
Buildings
Riel Recreation Park Redevelopment
Buildings
North Wall Sewage Treatment Plant and Main Lift Station Upgrade
Water