Improving traffic flow and safety on a key Calgary bridge
Associated Engineering’s innovative design for rehabilitating and widening Calgary’s Crowchild Trail Bow River Bridge Interchange improves functionality and safety and extends the life of the 50-year-old structure. The cost-effective, sustainable solution reused the existing structure, reduced demolition, limited waste, and protected the river. The complex traffic staging plan mitigated interruption to commuters, railways, and businesses. Widening the bridge and realigning the access ramps relieves congestion, decreases emissions, and improves the experience for over 100,000 daily commuters.
During design, Thurber provided the geotechnical site investigations for this project, assessed the geotechnical capacity of the existing structure, provided slope stability analysis, and provided pile wall and MSE wall stability analysis.
During construction, Thurber provided the geotechnical investigations (subgrade, bearing for piers and abutments, foundations, ground anchors, driven piles, soil nails), construction materials and lab testing (density, proctors, gradation), instrumentation and monitoring consistent with the observational method, concrete and asphalt mix design review, and concrete testing.
This project won a 2022 Canadian Consulting Engineering Award of Excellence.