Terwillegar Park Footbridge

It's About Aesthetics

The $24.5-million bridge was funded by grants from the city, the River Valley Alliance–which is made up of seven municipalities along the river including Edmonton–as well as the provincial and federal governments.

We are proud to announce that the Terwillegar Park Footbridge was recognized by Alberta Construction Magazine (ACM) 2016 Top Projects Awards in the Civil categories for projects Under $50 Million and in Civil Design. This is the second project that IMARK was apart of in 2016 that has been recognized by a world renowned publication in the area of construction and architecture. The Castle Downs Park Pavillion was nominated for a WAN Award in the Fall 2016.

The Client

Graham Construction, The City of Edmonton and the River Valley Alliance

The Project

Terwillegar Park Footbridge


Quick Facts

  • It will be the second longest stressed ribbon footbridge in the world.
  • The bridge is 262 metres long, which is the slightly over the length of two football fields
  • Pedestrians and cyclists using the bridge will feel a slight dip between the two piers and the abutments

The Situation

IMARK was chosen to be the construction partner on the final stage of construction – installation of four aluminum canopies, providing shelter above the viewing points of the bridge.  The base scope composed of single skin lightweight aluminum cladding that was to be installed directly onto a structural steel canopy assembly.  What seemed to be an easy project was in fact one of the most difficult installations of 2016. (read blog: Terwillegar Park Footbridge: Stressing Edmonton Out)

 

structural railing

IMARK’s Approach

Once the structure was built it became apparent that in order to provide the bridge with a quality installation IMARK had to adjust the steel skeleton, and create a flat and even sub-structure fastening plain. The trick was to hide all additional elements of the substructure so that only the steel structure was visible to the public.

The access to the canopies had to be reviewed and confirmed by a bridge engineer, confirming that the suspended bridge deck can withstand the loads of our equipment. Once approved, we literally squeezed two manlifts into the footprint of the piers, with only inches to spare between the decorative guardrails and the concrete columns supporting the canopy. The reach of each unit and the skills of the operators were put through some serious challenges.