The Dawson Bridge is a 100 year old, six-span truss bridge that forms an important link running through the centre of Edmonton, Canada. The structure had weakened with age and a load limit had been imposed. The existing deck was a combination of concrete and wood.
The new bridge deck was installed in parallel with the renovation of the main trusses. The full-load capacity of the bridge was reinstated without major structural reinforcement. Each 8x 2m (26x 6ft) panel weighed 3.5 tonnes and was lifted into place using tele-handlers working from panels installed only minutes before. No in-field welding was required, with plate continuity along the bridge being created by upper and lower bolted splice plates. The deck was sealed with a Stirling Lloyd Eliminator membrane prior to application of an asphalt wearing surface.