Location
Burnaby, British Columbia
Expertise
Transit
Bridges
Structures
Transportation
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Part of the Initial System of the Vancouver Advanced Light Rail Transit project, subsequently the Vancouver SkyTrain, required a grade-separated crossing of a planned extension of 10th Avenue in South Burnaby. Geometric constraints required the four-lane roadway to pass underneath the three guideway tracks. A major constraint to the crossing design was the presence of the BC Southern Railway immediately to the south of the guideway tracks.
Faced with the costly prospect of building a complete bridge to accommodate the future roadway without affecting the adjacent railway track, the Initial System supplier, Metro Canada Limited, asked Associated Engineering, to provide an effective solution. The result was a unique structure that permitted uninterrupted use of the guideways during future roadway construction, did not impact the BC Southern Railway, and was substantially less expensive than a new bridge. The solution was piled slab construction in which shallow bank seat abutments and drilled piles were installed beneath the guideway alignments, and a 50 metre long, 600 millimetre deep concrete slab was cast on grade. Track slabs were cast on top of the slab to carry the ALRT tracks.
A decade later, the City of Burnaby retained Associated Engineering to design the new roadway, now named South Point Drive. The design called for excavation beneath the concrete slab and cladding of the piles to form new bridge piers. Now disused, the BC Southern Railway property was purchased and a pedestrian bridge built alongside to carry the BC Parkway recreational trail. SkyTrain operations were unaffected throughout this second phase of construction.
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Project Highlights
More Transit Projects
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![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/IMG_1368-thumb.jpg)
Environmental
Environmental Planning, Valley Line LRT
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/IMG_1368-thumb.jpg)
Environmental
Contamination Management, Valley Line LRT
![Project Image](https://www.ae.ca/wp-content/uploads/2023/07/st-alberta-transportation-master-plan-tn.jpg)
Active Transportation
St. Albert Transportation Master Plan
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/skytrain-thumb.jpg)
Transit
SkyTrain Fraser River Crossing North Approach Spans
![Project Image](https://www.ae.ca/wp-content/uploads/2023/07/oliver-bowen-thumb.jpg)
Building Structures
Oliver Bowen Light Rail Vehicle Storage and Maintenance Facility
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/IMG_1368-thumb.jpg)
Environmental
Regulatory Application and Approvals, Valley Line LRT
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/medicine-hat-transit-its-decision-support-tn.jpg)
Transportation
Medicine Hat Transit ITS Decision Support
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/south-east-green-line-tn.jpg)
Transit
Calgary Green Line LRT
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/thumbf8eea8391b316d6b9fc9ff00001037d2.jpg)
Intelligent Transportation Systems
Red Deer Transit – Intelligent Transportation Systems (ITS) Project Charters
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/broadway-subway-tn.png)
Transit
Broadway Subway
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/IMG_3254.jpg)
Bridges
SkyTrain Grandview Cut Structural Upgrade
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/naki-transit-tn.jpg)
Building Mechanical
St. Albert Naki Transit Centre and Park & Ride
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/valley-line-tn.jpg)
Transportation
Edmonton Valley Line – Stage 1
LEADERSHIP INSIGHTS
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