Outfall Structure Improvements- Outfall 19

Red Willow Trail is closed from the Blais Footbridge to the trail head at Sturgeon Road/Sir Winston Churchill Avenue until fall 2025.

About the Project

Protecting the Sturgeon River from the impacts of existing and future developments has always been a priority for the City of St. Albert (City). Storm Outfalls are an important part of this process and the City has identified Outfall 19 as requiring improvements to continue providing this important service.

Timeline:

Phase 4 Construction:
- ongoing until fall 2025

Potential Construction Impacts:

Temporary sidewalk/trail closures. Please obey all signage for safety reasons.
Equipment will be on-site for excavation and material installation. Please obey all signage and fenced-off areas.
Noise disturbance will occur during work hours.

Phase 4: Outfall 19 (2024 & 2025)

Outfall 19 improvements include:

Remove, replace, and install new pipe segments
Remove existing asphalt/stone/concrete/curbs
Supply and install cast-in-place outfall structure
Supply and install security grate on outfall
Supply and install guardrail on outfall
Supply and install erosion prevention measures including Class 2 rip rap
Supply and install OGS unit and pile foundations upstream of outfall
Supply and install a maintenance access road for the OGS unit and tie into existing pedestrian trail and Sturgeon Road
Site restoration

The intent of these upgrades is to improve public safety around the outfall and address pipe displacements, the lack of erosion protection surrounding the outfall and sedimentation issues in Sturgeon River.

overhead image of outfall 19 location