The Mill Creek combined sewer trunks carry wastewater from a large part of south Edmonton towards the Gold Bar Wastewater Treatment Plant, and also convey rainwater and snowmelt from some of Edmonton’s older south side neighborhoods. This line services approximately 58,000 sanitary connections in south Edmonton. Segments of the combined sewer trunk have been observed to be in very poor condition.
Inspections have identified that the existing tunnel running through the Ritchie and Old Strathcona neighborhoods, as well as under the Mill Creek Ravine, requires replacement to ensure it continues to reliably meet the needs for south Edmonton.
The project is expected to begin in mid-March 2023 with completion in 2026.