Peter Walser and Philippa Maier will report on the competition, detailed design, and site supervision for the new Pattullo Bridge at the 22nd Symposium on Bridge Construction in Leipzig on February 15-16, 2022.

http://symposium-brueckenbau.de/

The Pattullo Bridge is a vital link between the communities of Surrey and New Westminster in Greater Vancouver, British Columbia, Canada. A new four-lane crossing will replace the existing Pattullo Bridge built in 1937. The new bridge will be constructed immediately upstream of the existing bridge as a cable-stayed bridge with a total length of 770 m and a main span of 332 m with a steel composite superstructure. There will be dedicated pedestrian and bicycle lanes on both sides of the bridge. The design includes a future extension to six lanes with pedestrian and bicycle lanes located outside the cable levels. The H-shaped pylon is reinforced concrete with steel boxes for anchoring the strand cables. Possible soil liquefaction in the event of an earthquake poses a major challenge for the design of the steel piles, which are up to 100 m long and 2.50 m or 2.00 m in diameter. Due to the strong earthquake effects, the superstructure is isolated from the substructures with lead core bearings.

https://www.pattullobridgereplacement.ca/

Tender design, detailed design and site supervision.

The prime contractor is Hatch Corporation. LAP is subcontractor and technical lead for the main bridge.

Visualization: © FCCGP