North East Anthony Henday Bridge Project

Scope of Work

Our team installed piles ranging from 610mm to 3000mm in diameter for bridge piers, stabilization piles, and deep support piles through abandoned coal mines. Key components included:

• Bridge Construction: Installed 16 cast-in-place concrete caissons, 3 meters in diameter, for a new bridge crossing the North Saskatchewan River. Work was performed within a dewatered berm to manage static water pressure.
• Slope Stability Wall: Constructed on the riverbanks, featuring 89 CIP concrete shafts, 1500mm in diameter.
• Overpass Drilling: Installed 139 drilled shafts, 610mm in diameter, to a depth of 43m through an abandoned coal shaft, utilizing 762mm oversized casings to mitigate hazardous gas exposure.

Challenges & Solutions

• Water Pressure Management: Developed innovative solutions to handle massive static water pressure within the river pier piles.
• Hazardous Gas Mitigation: Telescoped piles through oversized casings to prevent methane gas leaks and H2S exposure.
• Complex Site Conditions: Additional planning was required due to the bridge’s location over an active CP Rail Yard, exposure to hazardous gases, and extreme weather conditions.

Overall Impact

The Anthony Henday Project exemplifies CDI’s capability to manage large-scale infrastructure projects under challenging conditions. Our innovative techniques and commitment to safety ensured the successful completion of this critical development, enhancing Edmonton’s transportation infrastructure and demonstrating our leadership in the specialty foundation industry.