Still Creek Pedestrian Bridge Replacement

Metro Vancouver retained Associated Engineering to provide engineering services for replacing the existing bridge with a prefabricated superstructure to improve freeboard and design capacity.

The project posed a number of challenges that included limited site access, poor ground conditions, highly compressible soils, and sensitive environmental habitat. We reviewed options for construction access and staging, including trail upgrades/ground improvements to support heavy equipment, installation with a heavy lift helicopter or accessing the site and installation using sectional barges. Helical piles with a cast-in-place pile cap was selected as the bridge foundation as the piles could be installed with relatively lightweight equipment with minimum impact and disturbance to the surrounding environment.